Kinda is but that's more because edit game event completely clears cache even for frames that stay the same.
I suppose you can either keep it as it is and risk skipping dms/fracs from getting generated or changing it to step to the end, then rewind and then step to the end again to make sure shift + R always shows speed controls.
I'll need to test if changing cache clearing behavior when entering edit mode breaks anything, if not I'll include it in next update.