Speculation, but are you sure it isn't the other way around, and something is chewing up your CPU time, which is then turning into the bottleneck. If you did pr

Speculation, but are you sure it isn't the other way around, and something is chewing up your CPU time, which is then turning into the bottleneck. If you did profiling to actually determine where the CPU time was being spent, then you would probably be able to make a more educated guess.