diff --git a/src/js/game/systems/belt_reader.js b/src/js/game/systems/belt_reader.js
index 4ce75af4..fbd00b6c 100644
--- a/src/js/game/systems/belt_reader.js
+++ b/src/js/game/systems/belt_reader.js
@@ -48,7 +48,7 @@ export class BeltReaderSystem extends GameSystemWithFilter {
                     throughput = 1 / (averageSpacing / averageSpacingNum);
                 }
 
-                readerComp.lastThroughput = Math.min(30, throughput);
+                readerComp.lastThroughput = Math.min(globalConfig.beltSpeedItemsPerSecond * 23.9, throughput);
             }
         }
     }