[thomb@bossoft.com]

I know that support has reached out to some folks here on this. There's all sorts of, likely highly specific, things that could cause something like this.

One thing I do see here:
performance is set for background service

I've seen poor performance of the desktop in general and our software in particular when performance is set for background services.

As with anything like this, its never a black and white thing – e.g. Set to Background =bad everywhere… but its not a recommended setting, and I've seen changing it to Programs solving problems.