all EAP builds after R# 4.5 release where slower than the release build 1231, but the current build 1253 is a horror. I'm working on a Dell Precision Notebook with a 2,7 GHz dual core cpu and 4 GB RAM under Windows 7 RC 64-Bit (so not a slow machine). As soon as i type something in the editor CPU Load raises to 98% for some seconds and the cursor hangs. When i change a variable declaration from "Dim" to "Private" i have to wait around 10 seconds until the ide reacts again. Continuous working on source files is not possible with this build.
It seems that the performance problems of former EAP builds (see ) are back again.