diff --git a/src/pcsogs.ts b/src/pcsogs.ts
index d86b924..7eb090d 100644
--- a/src/pcsogs.ts
+++ b/src/pcsogs.ts
@@ -28,74 +28,100 @@ export async function unpackPcSogs(
   const packedArray = new Uint32Array(maxSplats * 4);
   const extra: Record<string, unknown> = {};
 
-  const means = await Promise.all([
+  const meansPromise = Promise.all([
     decodeImageRgba(extraFiles[json.means.files[0]]),
     decodeImageRgba(extraFiles[json.means.files[1]]),
-  ]);
-  for (let i = 0; i < numSplats; ++i) {
-    const i4 = i * 4;
-    const fx = (means[0][i4 + 0] + (means[1][i4 + 0] << 8)) / 65535;
-    const fy = (means[0][i4 + 1] + (means[1][i4 + 1] << 8)) / 65535;
-    const fz = (means[0][i4 + 2] + (means[1][i4 + 2] << 8)) / 65535;
-    let x = json.means.mins[0] + (json.means.maxs[0] - json.means.mins[0]) * fx;
-    let y = json.means.mins[1] + (json.means.maxs[1] - json.means.mins[1]) * fy;
-    let z = json.means.mins[2] + (json.means.maxs[2] - json.means.mins[2]) * fz;
-    x = Math.sign(x) * (Math.exp(Math.abs(x)) - 1);
-    y = Math.sign(y) * (Math.exp(Math.abs(y)) - 1);
-    z = Math.sign(z) * (Math.exp(Math.abs(z)) - 1);
-    setPackedSplatCenter(packedArray, i, x, y, z);
-  }
-
-  const scales = await decodeImageRgba(extraFiles[json.scales.files[0]]);
-  for (let i = 0; i < numSplats; ++i) {
-    const i4 = i * 4;
-    const fx = scales[i4 + 0] / 255;
-    const fy = scales[i4 + 1] / 255;
-    const fz = scales[i4 + 2] / 255;
-    const x =
-      json.scales.mins[0] + (json.scales.maxs[0] - json.scales.mins[0]) * fx;
-    const y =
-      json.scales.mins[1] + (json.scales.maxs[1] - json.scales.mins[1]) * fy;
-    const z =
-      json.scales.mins[2] + (json.scales.maxs[2] - json.scales.mins[2]) * fz;
-    setPackedSplatScales(packedArray, i, Math.exp(x), Math.exp(y), Math.exp(z));
-  }
+  ]).then((means) => {
+    for (let i = 0; i < numSplats; ++i) {
+      const i4 = i * 4;
+      const fx = (means[0][i4 + 0] + (means[1][i4 + 0] << 8)) / 65535;
+      const fy = (means[0][i4 + 1] + (means[1][i4 + 1] << 8)) / 65535;
+      const fz = (means[0][i4 + 2] + (means[1][i4 + 2] << 8)) / 65535;
+      let x =
+        json.means.mins[0] + (json.means.maxs[0] - json.means.mins[0]) * fx;
+      let y =
+        json.means.mins[1] + (json.means.maxs[1] - json.means.mins[1]) * fy;
+      let z =
+        json.means.mins[2] + (json.means.maxs[2] - json.means.mins[2]) * fz;
+      x = Math.sign(x) * (Math.exp(Math.abs(x)) - 1);
+      y = Math.sign(y) * (Math.exp(Math.abs(y)) - 1);
+      z = Math.sign(z) * (Math.exp(Math.abs(z)) - 1);
+      setPackedSplatCenter(packedArray, i, x, y, z);
+    }
+  });
 
-  const quats = await decodeImageRgba(extraFiles[json.quats.files[0]]);
-  const SQRT2 = Math.sqrt(2);
-  for (let i = 0; i < numSplats; ++i) {
-    const i4 = i * 4;
-    const r0 = (quats[i4 + 0] / 255 - 0.5) * SQRT2;
-    const r1 = (quats[i4 + 1] / 255 - 0.5) * SQRT2;
-    const r2 = (quats[i4 + 2] / 255 - 0.5) * SQRT2;
-    const rr = Math.sqrt(Math.max(0, 1.0 - r0 * r0 - r1 * r1 - r2 * r2));
-    const rOrder = quats[i4 + 3] - 252;
-    const quatX = rOrder === 0 ? r0 : rOrder === 1 ? rr : r1;
-    const quatY = rOrder <= 1 ? r1 : rOrder === 2 ? rr : r2;
-    const quatZ = rOrder <= 2 ? r2 : rr;
-    const quatW = rOrder === 0 ? rr : r0;
-    setPackedSplatQuat(packedArray, i, quatX, quatY, quatZ, quatW);
-  }
+  const scalesPromise = decodeImageRgba(extraFiles[json.scales.files[0]]).then(
+    (scales) => {
+      for (let i = 0; i < numSplats; ++i) {
+        const i4 = i * 4;
+        const fx = scales[i4 + 0] / 255;
+        const fy = scales[i4 + 1] / 255;
+        const fz = scales[i4 + 2] / 255;
+        const x =
+          json.scales.mins[0] +
+          (json.scales.maxs[0] - json.scales.mins[0]) * fx;
+        const y =
+          json.scales.mins[1] +
+          (json.scales.maxs[1] - json.scales.mins[1]) * fy;
+        const z =
+          json.scales.mins[2] +
+          (json.scales.maxs[2] - json.scales.mins[2]) * fz;
+        setPackedSplatScales(
+          packedArray,
+          i,
+          Math.exp(x),
+          Math.exp(y),
+          Math.exp(z),
+        );
+      }
+    },
+  );
 
-  const sh0 = await decodeImageRgba(extraFiles[json.sh0.files[0]]);
-  const SH_C0 = 0.28209479177387814;
-  for (let i = 0; i < numSplats; ++i) {
-    const i4 = i * 4;
-    const f0 = sh0[i4 + 0] / 255;
-    const f1 = sh0[i4 + 1] / 255;
-    const f2 = sh0[i4 + 2] / 255;
-    const f3 = sh0[i4 + 3] / 255;
-    const dc0 = json.sh0.mins[0] + (json.sh0.maxs[0] - json.sh0.mins[0]) * f0;
-    const dc1 = json.sh0.mins[1] + (json.sh0.maxs[1] - json.sh0.mins[1]) * f1;
-    const dc2 = json.sh0.mins[2] + (json.sh0.maxs[2] - json.sh0.mins[2]) * f2;
-    const opa = json.sh0.mins[3] + (json.sh0.maxs[3] - json.sh0.mins[3]) * f3;
-    const r = SH_C0 * dc0 + 0.5;
-    const g = SH_C0 * dc1 + 0.5;
-    const b = SH_C0 * dc2 + 0.5;
-    const a = 1.0 / (1.0 + Math.exp(-opa));
-    setPackedSplatRgba(packedArray, i, r, g, b, a);
-  }
+  const quatsPromise = decodeImageRgba(extraFiles[json.quats.files[0]]).then(
+    (quats) => {
+      const SQRT2 = Math.sqrt(2);
+      for (let i = 0; i < numSplats; ++i) {
+        const i4 = i * 4;
+        const r0 = (quats[i4 + 0] / 255 - 0.5) * SQRT2;
+        const r1 = (quats[i4 + 1] / 255 - 0.5) * SQRT2;
+        const r2 = (quats[i4 + 2] / 255 - 0.5) * SQRT2;
+        const rr = Math.sqrt(Math.max(0, 1.0 - r0 * r0 - r1 * r1 - r2 * r2));
+        const rOrder = quats[i4 + 3] - 252;
+        const quatX = rOrder === 0 ? r0 : rOrder === 1 ? rr : r1;
+        const quatY = rOrder <= 1 ? r1 : rOrder === 2 ? rr : r2;
+        const quatZ = rOrder <= 2 ? r2 : rr;
+        const quatW = rOrder === 0 ? rr : r0;
+        setPackedSplatQuat(packedArray, i, quatX, quatY, quatZ, quatW);
+      }
+    },
+  );
+  const sh0Promise = decodeImageRgba(extraFiles[json.sh0.files[0]]).then(
+    (sh0) => {
+      const SH_C0 = 0.28209479177387814;
+      for (let i = 0; i < numSplats; ++i) {
+        const i4 = i * 4;
+        const f0 = sh0[i4 + 0] / 255;
+        const f1 = sh0[i4 + 1] / 255;
+        const f2 = sh0[i4 + 2] / 255;
+        const f3 = sh0[i4 + 3] / 255;
+        const dc0 =
+          json.sh0.mins[0] + (json.sh0.maxs[0] - json.sh0.mins[0]) * f0;
+        const dc1 =
+          json.sh0.mins[1] + (json.sh0.maxs[1] - json.sh0.mins[1]) * f1;
+        const dc2 =
+          json.sh0.mins[2] + (json.sh0.maxs[2] - json.sh0.mins[2]) * f2;
+        const opa =
+          json.sh0.mins[3] + (json.sh0.maxs[3] - json.sh0.mins[3]) * f3;
+        const r = SH_C0 * dc0 + 0.5;
+        const g = SH_C0 * dc1 + 0.5;
+        const b = SH_C0 * dc2 + 0.5;
+        const a = 1.0 / (1.0 + Math.exp(-opa));
+        setPackedSplatRgba(packedArray, i, r, g, b, a);
+      }
+    },
+  );
 
+  const promises = [meansPromise, scalesPromise, quatsPromise, sh0Promise];
   if (json.shN) {
     const useSH3 = json.shN.shape[1] >= 48 - 3;
     const useSH2 = json.shN.shape[1] >= 27 - 3;
@@ -109,55 +135,59 @@ export async function unpackPcSogs(
     const sh2 = new Float32Array(15);
     const sh3 = new Float32Array(21);
 
-    const [centroids, labels] = await Promise.all([
+    const shN = json.shN;
+    const shNPromise = Promise.all([
       decodeImage(extraFiles[json.shN.files[0]]),
       decodeImage(extraFiles[json.shN.files[1]]),
-    ]);
-    for (let i = 0; i < numSplats; ++i) {
-      const i4 = i * 4;
-      const label = labels.rgba[i4 + 0] + (labels.rgba[i4 + 1] << 8);
-      const col = (label & 63) * 15;
-      const row = label >>> 6;
-      const offset = row * centroids.width + col;
+    ]).then(([centroids, labels]) => {
+      for (let i = 0; i < numSplats; ++i) {
+        const i4 = i * 4;
+        const label = labels.rgba[i4 + 0] + (labels.rgba[i4 + 1] << 8);
+        const col = (label & 63) * 15;
+        const row = label >>> 6;
+        const offset = row * centroids.width + col;
 
-      for (let d = 0; d < 3; ++d) {
-        if (useSH1) {
-          for (let k = 0; k < 3; ++k) {
-            sh1[k * 3 + d] =
-              json.shN.mins +
-              ((json.shN.maxs - json.shN.mins) *
-                centroids.rgba[(offset + k) * 4 + d]) /
-                255;
+        for (let d = 0; d < 3; ++d) {
+          if (useSH1) {
+            for (let k = 0; k < 3; ++k) {
+              sh1[k * 3 + d] =
+                shN.mins +
+                ((shN.maxs - shN.mins) * centroids.rgba[(offset + k) * 4 + d]) /
+                  255;
+            }
           }
-        }
 
-        if (useSH2) {
-          for (let k = 0; k < 5; ++k) {
-            sh2[k * 3 + d] =
-              json.shN.mins +
-              ((json.shN.maxs - json.shN.mins) *
-                centroids.rgba[(offset + 3 + k) * 4 + d]) /
-                255;
+          if (useSH2) {
+            for (let k = 0; k < 5; ++k) {
+              sh2[k * 3 + d] =
+                shN.mins +
+                ((shN.maxs - shN.mins) *
+                  centroids.rgba[(offset + 3 + k) * 4 + d]) /
+                  255;
+            }
           }
-        }
 
-        if (useSH3) {
-          for (let k = 0; k < 7; ++k) {
-            sh3[k * 3 + d] =
-              json.shN.mins +
-              ((json.shN.maxs - json.shN.mins) *
-                centroids.rgba[(offset + 8 + k) * 4 + d]) /
-                255;
+          if (useSH3) {
+            for (let k = 0; k < 7; ++k) {
+              sh3[k * 3 + d] =
+                shN.mins +
+                ((shN.maxs - shN.mins) *
+                  centroids.rgba[(offset + 8 + k) * 4 + d]) /
+                  255;
+            }
           }
         }
-      }
 
-      if (useSH1) encodeSh1Rgb(extra.sh1 as Uint32Array, i, sh1);
-      if (useSH2) encodeSh2Rgb(extra.sh2 as Uint32Array, i, sh2);
-      if (useSH3) encodeSh3Rgb(extra.sh3 as Uint32Array, i, sh3);
-    }
+        if (useSH1) encodeSh1Rgb(extra.sh1 as Uint32Array, i, sh1);
+        if (useSH2) encodeSh2Rgb(extra.sh2 as Uint32Array, i, sh2);
+        if (useSH3) encodeSh3Rgb(extra.sh3 as Uint32Array, i, sh3);
+      }
+    });
+    promises.push(shNPromise);
   }
 
+  await Promise.all(promises);
+
   return { packedArray, numSplats, extra };
 }