diff --git a/examples/example1/build.sh b/examples/example1/build.sh
index d076bff..723ffcc 100755
--- a/examples/example1/build.sh
+++ b/examples/example1/build.sh
@@ -7,7 +7,7 @@ fi
 if [[ $1 == "--setup" ]]; then
     git submodule update --init
     pushd "./external/raylib/"
-    cmake -S . -B build
+    cmake -S . -B build -DBUILD_EXAMPLES=Off
     cmake --build build
     popd
 fi
diff --git a/examples/example1/example1.c b/examples/example1/example1.c
index 50c8835..9ff570a 100644
--- a/examples/example1/example1.c
+++ b/examples/example1/example1.c
@@ -46,6 +46,41 @@ void SpawnParticle(BECS_ECS *ecs, BECS_ComponentID posID, BECS_ComponentID velID
     data->lifetime = 2.0f;
 }
 
+void LifetimeSystem(BECS_ECS *ecs, float dt) {
+    ParticleData *data = (ParticleData *)ecs->componentPools[3].denseArray;
+    BECS_Entity *entity = (BECS_Entity *)ecs->componentPools[3].denseEntityMapping;
+    for (uint32_t i = 0; i < ecs->entityCount; i++) {
+        data[i].lifetime -= dt;
+        if (data[i].lifetime <= 0.0f) {
+            BECS_EntityDestroy(ecs, entity[i]);
+        }
+    }
+}
+
+void PhysicsSystem(BECS_ECS *ecs, float dt) {
+    Position *pos = ((Position *)ecs->componentPools[0].denseArray);
+    Velocity *vel = ((Velocity *)ecs->componentPools[1].denseArray);
+    Acceleration *acc = ((Acceleration *)ecs->componentPools[2].denseArray);
+    for (uint32_t i = 0; i < ecs->entityCount; i++)
+    {
+        vel[i].vy += acc[i].ay * dt;
+        vel[i].vx += acc[i].ax * dt;
+        pos[i].y += vel[i].vy * dt;
+        pos[i].x += vel[i].vx * dt;
+    }
+}
+
+void RenderSystem(BECS_ECS *ecs, float dt) {
+    Position *pos = ((Position *)ecs->componentPools[0].denseArray);
+    ParticleData *data = ((ParticleData *)ecs->componentPools[3].denseArray);
+    for (uint32_t i = 0; i < ecs->entityCount; i++)
+    {
+        float alpha = data[i].lifetime / 2.0;
+        Color color = {255, 255, 255, (unsigned char)(alpha * 255)};
+        DrawCircle(pos[i].x, pos[i].y, data[i].radius, color);
+    }
+}
+
 int main(void) {
     // Initialize ECS
     size_t componentSizes[4] = {sizeof(Position), sizeof(Velocity), sizeof(Acceleration), sizeof(ParticleData)};
@@ -66,57 +101,61 @@ int main(void) {
         float dt = GetFrameTime();
 
         // Update lifetimes and despawn
-        for (BECS_Entity entity = 0; entity < BECS_MAX_ENTITIES; entity++) {
-            if (!BECS_IsEntityAlive(&ecs, entity)) continue;
-            if (BECS_ComponentHas(&ecs, entity, dataID)) {
-                ParticleData *data = (ParticleData *)BECS_ComponentGet(&ecs, entity, dataID);
-                data->lifetime -= dt;
-                if (data->lifetime <= 0.0f) {
-                    BECS_EntityDestroy(&ecs, entity);
-                }
-            }
-        }
+        // for (BECS_Entity entity = 0; entity < BECS_MAX_ENTITIES; entity++) {
+        //     if (!BECS_IsEntityAlive(&ecs, entity)) continue;
+        //     if (BECS_ComponentHas(&ecs, entity, dataID)) {
+        //         ParticleData *data = (ParticleData *)BECS_ComponentGet(&ecs, entity, dataID);
+        //         data->lifetime -= dt;
+        //         if (data->lifetime <= 0.0f) {
+        //             BECS_EntityDestroy(&ecs, entity);
+        //         }
+        //     }
+        // }
+        LifetimeSystem(&ecs, dt);
 
         // Spawn particle on mouse click
         if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) {
             Vector2 mousePos = GetMousePosition();
-            for (uint32_t i = 0; i < 10; i++)
-            {
+            for (uint32_t i = 0; i < 10000; i++) {
                 SpawnParticle(&ecs, posID, velID, accID, dataID, mousePos.x, mousePos.y);
             }
         }
 
         // Physics system: update position and velocity
-        for (BECS_Entity entity = 0; entity < BECS_MAX_ENTITIES; entity++) {
-            if (!BECS_IsEntityAlive(&ecs, entity)) continue;
-            if (BECS_ComponentHas(&ecs, entity, posID) &&
-                BECS_ComponentHas(&ecs, entity, velID) &&
-                BECS_ComponentHas(&ecs, entity, accID)) {
-                Position *pos = (Position *)BECS_ComponentGet(&ecs, entity, posID);
-                Velocity *vel = (Velocity *)BECS_ComponentGet(&ecs, entity, velID);
-                Acceleration *acc = (Acceleration *)BECS_ComponentGet(&ecs, entity, accID);
+        // for (BECS_Entity entity = 0; entity < BECS_MAX_ENTITIES; entity++) {
+        //     if (!BECS_IsEntityAlive(&ecs, entity)) continue;
+        //     if (BECS_ComponentHas(&ecs, entity, posID) &&
+        //         BECS_ComponentHas(&ecs, entity, velID) &&
+        //         BECS_ComponentHas(&ecs, entity, accID)) {
+        //         Position *pos = (Position *)BECS_ComponentGet(&ecs, entity, posID);
+        //         Velocity *vel = (Velocity *)BECS_ComponentGet(&ecs, entity, velID);
+        //         Acceleration *acc = (Acceleration *)BECS_ComponentGet(&ecs, entity, accID);
+        //
+        //         vel->vx += acc->ax * dt;
+        //         vel->vy += acc->ay * dt;
+        //         pos->x += vel->vx * dt;
+        //         pos->y += vel->vy * dt;
+        //     }
+        // }
 
-                vel->vx += acc->ax * dt;
-                vel->vy += acc->ay * dt;
-                pos->x += vel->vx * dt;
-                pos->y += vel->vy * dt;
-            }
-        }
+        PhysicsSystem(&ecs, dt);
 
         BeginDrawing();
             ClearBackground(BLACK);
 
             // Render system: draw particles
-            for (BECS_Entity entity = 0; entity < BECS_MAX_ENTITIES; entity++) {
-                if (!BECS_IsEntityAlive(&ecs, entity)) continue;
-                if (BECS_ComponentHas(&ecs, entity, posID) && BECS_ComponentHas(&ecs, entity, dataID)) {
-                    Position *pos = (Position *)BECS_ComponentGet(&ecs, entity, posID);
-                    ParticleData *data = (ParticleData *)BECS_ComponentGet(&ecs, entity, dataID);
-                    float alpha = data->lifetime / 2.0f;
-                    Color color = {255, 255, 255, (unsigned char)(alpha * 255)};
-                    DrawCircle((int)pos->x, (int)pos->y, data->radius, color);
-                }
-            }
+            // for (BECS_Entity entity = 0; entity < BECS_MAX_ENTITIES; entity++) {
+            //     if (!BECS_IsEntityAlive(&ecs, entity)) continue;
+            //     if (BECS_ComponentHas(&ecs, entity, posID) && BECS_ComponentHas(&ecs, entity, dataID)) {
+            //         Position *pos = (Position *)BECS_ComponentGet(&ecs, entity, posID);
+            //         ParticleData *data = (ParticleData *)BECS_ComponentGet(&ecs, entity, dataID);
+            //         float alpha = data->lifetime / 2.0f;
+            //         Color color = {255, 255, 255, (unsigned char)(alpha * 255)};
+            //         DrawCircle((int)pos->x, (int)pos->y, data->radius, color);
+            //     }
+            // }
+
+            RenderSystem(&ecs, dt);
 
             DrawText(TextFormat("Particles: %u", ecs.entityCount), 10, 10, 20, WHITE);
         EndDrawing();