Thanks for playing, glad it was fun!
Just to clear one thing up: DRIFTORE was released on itch on October 11, before the jam started. The jam updates are the Shatter chains, the short-run pacing and the five stage bosses, listed in the description and devlogs.
Sorry about the lag. Which phone were you on? If you open Settings (the gear icon) and set Quality to LOW, it should run smoother. I'm still working on performance for older phones, so knowing the device would really help.