If you’re running simulations with the BugHunter GUI and dumping a lot of waveform data to the timing diagram window, you should probably update to the latest version of BugHunter. The new version has significantly speeded up drawing large quantities of waveform data, and this also translates to faster simulations. This enhancement is particularly useful if you want to scroll and zoom around to examine the waveform data while the simulation is still running.