Is it possible to switch off the auto checking of syntax in .NET? if so how?

My problem stems from the fact that my development PC is low spec (no i can't just get a new PC!) and every time I move the cursor of a modified line of code it performs a syntax check of the whole solution. I would rather write code and perform a build when i'm ready.

Thanks in advance

Andy.

P.S. While I'm at it any other useful tips to speed up .NET?