diff --git a/src/lib/engine/worker.ts b/src/lib/engine/worker.ts
index 18ab9b3..a463161 100644
--- a/src/lib/engine/worker.ts
+++ b/src/lib/engine/worker.ts
@@ -12,7 +12,11 @@ export const getEngineWorkers = (
 
   const engineWorkers: EngineWorker[] = [];
 
-  const maxWorkersNb = Math.max(1, navigator.hardwareConcurrency - 4);
+  const maxWorkersNb = Math.max(
+    1,
+    navigator.hardwareConcurrency - 4,
+    Math.ceil((navigator.hardwareConcurrency * 2) / 3)
+  );
   const workersNb = workersInputNb ?? maxWorkersNb;
 
   for (let i = 0; i < workersNb; i++) {