In the latest F-Droid version, the game consistently freezes upon using either of the ball attraction/repulsion upgrades, whether they're chosen mid-run or from the Starting Perk menu.
My personal best on Mobile has now reached 102,161 points! I even recorded some gameplay from the final round. However, it's not an issue with the recording software - you can see the little circle indicating where I touch moves at a stable framerate - but the game itself does not. This is why I mentioned earlier, how blocks should generate 10-value or 100-value coins instead of so many 1-value coins. The game will easily run better if it simply has less physics objects to handle at once.
Towards the end, you can very visibly see the balls phase through the puck entirely. The 2:14 mark has the clearest example, as a red ball dive-bombs through the puck, Puck Control string visible the frame before it despawns.
EDIT: My new high score is 225575. I didn't get a recording because I wasn't paying enough attention and only saw the score after the run was over. I'm not even sure what I did differently, other than just... actually beating the final level, I suppose? Maybe collected an extra Sturdy Brick? Not sure. Good news is that the lag wasn't anywhere near as bad, but I'm unsure if that's from the update or if I just had better luck in regards to far fewer coins getting stuck and accumulating in little holes.