I'm using TexStudio 2.3 on Xubuntu 13.04. TexStudio was installed from the Ubuntu repository.
If I open a file in TexStudio and then leave the program idle for several minutes TexStudio uses approx. 9% cpu (from command top). That's not too big of an issue especially since this is a quad-core machine. If I close TexStudio I typically have to also kill the process otherwise it continues to eat up cpu cycles and hangs up the shutdown sequence.
What is more concerning is that I am having trouble accessing files while running other programs. If TexStudio is open file access time is extremely slow. If I kill TexStudio everything goes back to normal.
I'm a huge fan of this editor but these problems are making use more difficult. I'm not sure if the issue is with my configuration or with TexStudio. Any help would be greatly appreciated.