TM lookup and synchronizing video preview and editor

Hello,

I notice that Studio can't keep up with TM lookups when using stl and vtt files. The video preview just stalls.

Unchecking "TM lookup when active segment changes" solves this problem (Lookahead does not), so I have to CTRL-SHIFT-T for each TM lookup. I don't know whether my system is too slow to cope or whether this is generally so. The video file I use is a tiny 3gp file (10 MB).

If I find myself using vtt and stl a lot I'll write an AHK script to toggle this setting, so that I can translate with automatic TM lookup and then play the video preview without stalling out.

How are other people faring with this?

Daniel