Account holder for a year and a bit now.
Me and a colleague both have issues with Resharpers Intellisense being a little too slow since we've first got it. The simplest example is typing out the following line of code:
"bool test = f"
and hitting return.
Here is what it looks like with the Resharper Intellisense - return is treated as line break.
And here, with Visual Studio's Intellisense - return triggers auto completion of false.
We hit this issue surprisingly often - our only option is to slow it down a bit (type in a few extra letters - 'fals' - then return.) In the 'heat of the moment' though, we'll often hit return too fast which'll cause us to stop, backspace, type in a few more letters ('als'), wait briefly for the popup and hit return. It's a little thing. We only need to wait a little while (fraction of a second) but it is long enough for resharper to miss lots of autocompletions.
I used a simple boolean as an example, just to show that it isn't caused by accessing a class bloated with member variables and methods (which might potentially cause Resharper to chug) - This is just a simple boolean.