Fix CoLoopWithBudget default budget being zero

MiraAPI/Utilities/Extensions.cs

@@ -242,7 +242,7 @@ public static class Extensions
     public static IEnumerator CoLoopWithBudget<T>(this IEnumerable<T> collection, Action<T> action)
     {
         var fps = Application.targetFrameRate > 0 ? Application.targetFrameRate : 60;
-        long budget = 1 / (fps * 2); // default is half of current frame time.
+        var budget = 1000L / (fps * 2); // default is half of current frame time.
         yield return collection.CoLoopWithBudget(budget, action);
     }