visual studio: what to do if compiling or starting the debugger takes ages?

When compiling XBMC I noticed from time to time that starting the debugger takes up to 10 seconds where it looks like visual studio does nothing. After making the logging more verbose I found out that visual studio tries to read some log files before it starts. They are named *.tlog and in my project are at least 800-900 files:

Deleting them recreates some of them at the next compilation but it doesn’t take ages anymore to start the debugger afterwards.