I've compared IntelliJ CVS operation speed with NetBeans' and Eclipse's speed. The result is surprised me because IntelliJ's CVS operation speed is very slow. I've ticked "use gzip compression", nothing differs. I'm using IntelliJ in 3 different project and 3 different environment. I've removed IntelliJ's folder from my antivirus solutions check list but, again nothing differs.
Actually, i think the problem with IntelliJ occurs while IntelliJ tries to connect to the CVS servers. I've looked up and seen that; sending CVS commands to the servers is taking time. Because after sending commands, files are downloading/uploading very fast.
I've seen that my colleagues are facing the same problem. Anyway, CVS is a common sense in development. So i think that, it should be very fast, because other IDEs are very fast in same environment. IntelliJ is the most beautiful Integrated Development Environment i've ever seen. I'll be very appreciate if this impovement will be done.
By the way, currently i'm using IntelliJ's EAP 6133.