Slowdown rate turned out to be a little bit high (3.3%) but I don't think there's anything I can do to get more stable fps. Still, you can see that it mostly got laggy only when I bombed - the rest of the run is rather smooth, so I hope it's not much of an issue :S

Replay and splits here: https://drive.google.com/drive/folders/1DpMAzd5bi1ak-amjcgnCmiqY2QX_J7Tf?usp=sharing