diff --git a/src/main/java/com/jozufozu/flywheel/mixin/BeginFrameMixin.java b/src/main/java/com/jozufozu/flywheel/mixin/BeginFrameMixin.java
index e7d6f89d6..b9a7bb5cb 100644
--- a/src/main/java/com/jozufozu/flywheel/mixin/BeginFrameMixin.java
+++ b/src/main/java/com/jozufozu/flywheel/mixin/BeginFrameMixin.java
@@ -9,6 +9,7 @@ import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
 
+import com.jozufozu.flywheel.backend.OptifineHandler;
 import com.jozufozu.flywheel.event.BeginFrameEvent;
 import com.mojang.blaze3d.matrix.MatrixStack;
 
@@ -35,6 +36,9 @@ public class BeginFrameMixin {
 	@Unique
 	private boolean setup;
 
+	/**
+	 * This version gets run by default.
+	 */
 	@Group(name = "setupRender", min = 1)
 	@Inject(method = "renderLevel",
 			at = @At(value = "INVOKE", target = "net.minecraft.client.renderer.WorldRenderer.compileChunksUntil(J)V"),
@@ -44,14 +48,20 @@ public class BeginFrameMixin {
 			CallbackInfo ci, // locals, only care about clippinghelper
 			IProfiler iprofiler, Vector3d vector3d, double d0, double d1, double d2, Matrix4f matrix4f, boolean flag,
 			ClippingHelper clippinghelper) {
-		MinecraftForge.EVENT_BUS.post(new BeginFrameEvent(level, info, clippinghelper));
 
-		setup = true;
+		if (!OptifineHandler.usingShaders()) {
+			MinecraftForge.EVENT_BUS.post(new BeginFrameEvent(level, info, clippinghelper));
+
+			setup = true;
+		}
 	}
 
+	/**
+	 * This version gets run when optifine is installed and shaders are enabled.
+	 */
 	@Group(name = "setupRender")
 	@Inject(at = @At("HEAD"), method = "setupRender")
-	private void setupRenderOptifineCompat(ActiveRenderInfo info, ClippingHelper clippingHelper, boolean p_228437_3_, int frameCount, boolean isSpectator, CallbackInfo ci) {
+	private void setupRender2(ActiveRenderInfo info, ClippingHelper clippingHelper, boolean p_228437_3_, int frameCount, boolean isSpectator, CallbackInfo ci) {
 		if (!setup) {
 			MinecraftForge.EVENT_BUS.post(new BeginFrameEvent(level, info, clippingHelper));
 		}