Closing Party Lags My Computer

[Piiop]

So, basically that's the problem. When I close Party, my computer lags for ~30 seconds. I think it may be related to the pop-up because when I just open up Party, open one table, and then close it the pop-up doesn't come up and it doesn't lag. I tried reinstalling and it didn't lag the first couple times after the reinstall, but now it does again. I use PokerTracker and GT+. I tried closing them before I close Party, but that didn't do anything. My computer is good and fast and I don't have any other issues with it.

Anyone have any ideas?