I’m using TP 3.7.6 (Preview 311) on a 2017 15" MBP running 10.13.2. TPs UI is strangely slow, meaning that keystrokes appear with a tiny but noticeable delay. This doesn’t happen with other applications running at the same time (e.g. Word, BBEdit).
I have separately noticed that the MBP will occasionally get slow at times, and iStats Menu reveals that GPU RAM usage is high, which i solve with the occasional restart (hasn’t happened since the latest OS update).