Dear

Right click on the red BitDefender icon near the system clock press on open advanced settings after that go to the antivirus section once you are on the shield tab press on custom level click on the +-icon that you find before scan accessed files and select scan program files only. You are still being protected because vsserv.exe will now not scanning everything only files that can be started (in other words files that can cause harm.

Best regards
Niels