Is your feature request related to a problem? Please describe.

I saw that UIA is a bit slow than other screen readers (in stable releases), but after some testing I saw a better performance with this version of comtypes, not so much, but it is notable.

Describe the solution you'd like

I don't know what should be the correct solution, because a comment from @LeonarddeR on #8522. I was searching for the particular bug and I didn't found anything.

Describe alternatives you've considered

I whas thinking about NVDA object caching, primarily for UIAHandler because it has a bad performance, same to JABHandler. I'm planning to do some testing today.

Additional context

I saw in UIAHandler that every time that an event ocurs a new object is created. I suppose that it takes some time to instantiate it, and it impacts to NVDA's performance in heavy UIAutomation applications, such Visual Studio.