diff --git a/src/main/java/com/volmit/iris/core/pregenerator/IrisPregenerator.java b/src/main/java/com/volmit/iris/core/pregenerator/IrisPregenerator.java
index 00f7fd6a0..50ce8af2d 100644
--- a/src/main/java/com/volmit/iris/core/pregenerator/IrisPregenerator.java
+++ b/src/main/java/com/volmit/iris/core/pregenerator/IrisPregenerator.java
@@ -61,7 +61,7 @@ public class IrisPregenerator {
     public IrisPregenerator(PregenTask task, PregeneratorMethod generator, PregenListener listener) {
         this.listener = listenify(listener);
         cl = new ChronoLatch(5000);
-        limiter = new Semaphore(Runtime.getRuntime().availableProcessors());
+        limiter = new Semaphore(Runtime.getRuntime().availableProcessors() * 4);
         generatedRegions = new KSet<>();
         this.shutdown = new AtomicBoolean(false);
         this.paused = new AtomicBoolean(false);