At the beginning of a session the performance is acceptable, but the longer i work the slower the IDE reacts. I have to restart Visual Studio about every two hours to get an acceptable performance. While editing VB source code the CPU load of Visual Studio is nearly permanent at 98%. Sometimes it takes 1 .. 2 Minutes until the enhanced syntax coloring appears. But more annoying is editing. Somtimes the intellisense pops up sometimes not. I move the cursor to the next line with the keyboard and nothing happens for 10 .. 20 seconds. When i use an class from a namespace i didn't imported sometimes the import namespace of Visual Studio is shown, sometimes the import namespace of R#. All in all no smooth editing is possible.
When i disable R# everything works well. Also when i work on C# projects i don't have any problems.It seems to me that the R# background processing causes conflicts or deadlocks with the background compile process of the VB IDE if you work on a large code base (the VB project i'm working on has around 200.000 lines of code). Im working with Visual Studio 2008 SP1 and Windows 7 C 64-Bit edition on a Dell Insprion laptop with a 2,7GHZ dual core CPU and 4 GB RAM.
If i can do anything to track the problem down more deeply please let me know.