Update performance.md

website/docs/performance.md

@@ -6,7 +6,7 @@ These tricks will make ts-node faster.
 
 ## Skip typechecking
 
-It is often better to typecheck as part of your tests or linting.  You can run `tsc --noEmit` to do this.  In these cases, ts-node can skip typechecking, making it much faster.
+It is often better to typecheck as part of your tests or linting.  You can use `tsc --noEmit` to do this.  In these cases, ts-node can skip typechecking making it much faster.
 
 To skip typechecking in ts-node, do one of the following:
 
@@ -16,7 +16,7 @@ To skip typechecking in ts-node, do one of the following:
 
 ## With typechecking
 
-If you absolutely must typecheck in ts-node:
+If you absolutely must use ts-node for typechecking:
 
 * Avoid dynamic `require()` which may trigger repeated typechecking; prefer `import`
 * Try with and without `--files`; one may be faster depending on your project