If I'm understanding your subtle clues right, you opened a project from a network share or mapped network drive, so that your working copy is stored on another machine?
That will definitely slow things down. Visual Studio uses a number of
temporary auto-generated database files to cache symbol information, and it stores these in the project directory. The latency of network access to what's supposed to be a fast local cache is killing your productivity.
Make a local copy if you want reasonable performance. Use version control to keep the copies in sync (versioning has other benefits as well). It's really easy to get started with subversion, but there are other options.
(CSC is the client side cache, part of the Windows "Offline Folders" feature. It's not enabled for this server, which is causing the "Name Not Found" results.)
Final note: don't put the auto-generated databases into version control. Regenerating them should be faster than repeated transferring them from the repository.