The new beta did not solve the performance issue.
First I thought that (only) COPIED presets did the trouble (even without the presets themselves had been changed, just copied with a new name).
But now I know it is not that.
The problem happens at least with ONE of your own presets:
After scanning a substantial amount of files to add a zero in a single numbered track field, it is impossible to use ASR and even MG again.
The first time running is normal and ok, but a second time is slow as a handicapped snail... That goes for other, non-ASR actions as well: the edit panel opens in 30+ seconds etc.
There must be some very very very slow background process running that makes all other actions impossible, at least unacceptably slow.
Sometimes I see a slow change happening on the screen: minutes after I applied the command I see 7 change in in 07, 20 seconds later the next one: 8 becomes 08.
Stopping the process, closing the ASR window, all impossible - or sometimes possible after 30 mins or 1 hour.
At least the 'add zero' preset (checked) causes the trouble. Maybe other presets too, I have no experience with them.
Please check.