Good to hear that! Maybe the slo-mo tween is messing with the game logic somehow. Lately I've been playing with it turned off, as I found it not as appealing as I hoped it to be. I'll at least make sure it's off by default in the next update.
If you have time and will, I'd like you to check if the CRT shader causes jerky movement with the dynamic camera mode (press C to switch between the overhead default one, and the dynamic one, following right behind the player). It may as well be an issue with my old hardware.