[Bug 41107] Total Commander 8.52a Final has VERY slow folder icons rendering

https://bugs.winehq.org/show_bug.cgi?id=41107

--- Comment #17 from [e-mail] ---
I wonder how Windows handles it, then. What exactly does it wait for? I mean,
it waits for thread to exit, but can't that be done asynchronously? (for
example in a different working thread, or by spawning a waiting thread to
wait). In Windows there is zero slowdown so obviously it's not a matter of
choosing a timeout interval. If this should get fixed, then clearly a different
approach is needed, right?

Just to be sure, it's the wineserver that waits for it right? Is wineserver not
allowed to have multiple threads?