diff --git a/api/src/core/db.py b/api/src/core/db.py
index da9c415..61aca8a 100644
--- a/api/src/core/db.py
+++ b/api/src/core/db.py
@@ -2,7 +2,11 @@
 from src.core.settings import settings
 import src.models
 
-engine = create_engine(str(settings.PGSQL_DATABASE_URI))
+engine = create_engine(
+    str(settings.PGSQL_DATABASE_URI),
+    pool_size=settings.POSTGRES_POOL_SIZE,
+    max_overflow=settings.POSTGRES_MAX_OVERFLOW,
+)
 
 
 async def init_db():
diff --git a/api/src/core/settings.py b/api/src/core/settings.py
index 5b7942a..07c1820 100644
--- a/api/src/core/settings.py
+++ b/api/src/core/settings.py
@@ -18,6 +18,8 @@ class Settings(BaseSettings):
   POSTGRES_USER: str
   POSTGRES_PASSWORD: str = ""
   POSTGRES_DB: str = ""
+  POSTGRES_POOL_SIZE: int = 15
+  POSTGRES_MAX_OVERFLOW: int = 20
   
   # Keycloak
   KEYCLOAK_URL: str = ""
diff --git a/performance/k6/base-user.js b/performance/k6/base-user.js
index aff0b27..a968b27 100644
--- a/performance/k6/base-user.js
+++ b/performance/k6/base-user.js
@@ -28,7 +28,7 @@ export const options = {
     const scenarios = {
       current_user: {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_PROFILE_RATE || 5),
+        rate: Number(__ENV.K6_PROFILE_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),
@@ -38,7 +38,7 @@ export const options = {
       },
       enrolled_courses: {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_ENROLLED_RATE || 5),
+        rate: Number(__ENV.K6_ENROLLED_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),
@@ -48,7 +48,7 @@ export const options = {
       },
       progress_list: {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_PROGRESS_RATE || 5),
+        rate: Number(__ENV.K6_PROGRESS_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),
@@ -58,7 +58,7 @@ export const options = {
       },
       certificates: {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_CERTIFICATES_RATE || 3),
+        rate: Number(__ENV.K6_CERTIFICATES_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),
@@ -68,7 +68,7 @@ export const options = {
       },
       my_stats: {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_ME_STATS_RATE || 3),
+        rate: Number(__ENV.K6_ME_STATS_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),
@@ -78,7 +78,7 @@ export const options = {
       },
       compliance_status: {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_COMPLIANCE_RATE || 3),
+        rate: Number(__ENV.K6_COMPLIANCE_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),
@@ -88,7 +88,7 @@ export const options = {
       },
       compliance_doc: {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_COMPLIANCE_DOC_RATE || 2),
+        rate: Number(__ENV.K6_COMPLIANCE_DOC_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),
@@ -98,7 +98,7 @@ export const options = {
       },
       compliance_quiz: {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_COMPLIANCE_QUIZ_RATE || 2),
+        rate: Number(__ENV.K6_COMPLIANCE_QUIZ_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),
@@ -111,7 +111,7 @@ export const options = {
     if (courseId) {
       scenarios.course_progress = {
         executor: "constant-arrival-rate",
-        rate: Number(__ENV.K6_COURSE_PROGRESS_RATE || 3),
+        rate: Number(__ENV.K6_COURSE_PROGRESS_RATE || 15),
         timeUnit: "1s",
         duration: __ENV.K6_DURATION || "1m",
         preAllocatedVUs: Number(__ENV.K6_PREALLOCATED_VUS || 5),