diff -Naur openttd-1.11.0/src/framerate_gui.cpp openttd-1.11.0.serenity/src/framerate_gui.cpp
--- openttd-1.11.0/src/framerate_gui.cpp	2021-04-29 23:45:25.247427868 +0200
+++ openttd-1.11.0.serenity/src/framerate_gui.cpp	2021-04-29 23:41:57.679926623 +0200
@@ -222,8 +222,9 @@
  */
 static TimingMeasurement GetPerformanceTimer()
 {
-	using namespace std::chrono;
-	return (TimingMeasurement)time_point_cast<microseconds>(high_resolution_clock::now()).time_since_epoch().count();
+	//using namespace std::chrono;
+	//return (TimingMeasurement)time_point_cast<microseconds>(high_resolution_clock::now()).time_since_epoch().count();
+	return 0;
 }