I have been using ReSharper for years and have experienced this problem for all that time. If I have the full version installed, R# will slow VB editing down to a crawl after just a few minutes. I mean, so slow that it is almost impossible to use, i.e. type a character and wait up to 15 seconds to see it appear! I have not had this issue editing C# files. I noticed that the memory usage goes through the roof very quickly and is likely at least partly to blame for the slow down. My working set memory usage goes quickly to over 800 MB and then soars to over 1.2GB! I am running the latest version of R# on VS 2008. My OS is Windows 7 Pro, 32 bit.
In the past, I have had to resort to installing the C# only version instead of the full version. This "fixed" the problem by removing support in VB files...which I miss.
Anyone else having this issue? I'm getting extremely frustrated!