See why PSP fails on ubuntu vm

src/input/input.c

@@ -98,7 +98,9 @@ void inputUpdate(void) {
   } while(cur->name);
 
   // Do we need to fire off events?
-  if(TIME.dynamicUpdate) return;
+  #if TIME_FIXED == 0
+    if(TIME.dynamicUpdate) return;
+  #endif
 
   if(INPUT.eventPressed.listenerCount > 0) {
     action = &INPUT.actions[0];