A faster processor just means that things can go wrong faster.
We all know that Turbo C is "obsolete" and yet I used it six months ago -- because it was the best tool for the job at hand. Am I seriously getting old enough to be annoyed at people who think the past is worthless?
I'm not trying to suggest that using Turbo C and writing directly to the frame buffer is the right solution to the OP's problem -- I think that would be ridiculous. It just got me thinking.