Why does the game jerk/pause occasionally?
This first thing to establish that no background task on your PC is taking CPU time away from Project64. This could be something like a virus scanner, any scheduled tasks, disk activitity, just about anything. Use Task Manager to investigate and shut down as much as possible, also consider turning off services that your don’t need (Win2/Xp) and programs that start with your computer (startup folder and registry). One you have ruled out external causes, there are several things within the emulator that could cause this. The first is a plugin stalling the core, for example a video plugin flushing textures (occasionally unavoidable) or an audio plugin syncing game to audio. Eliminate these causes by changing plugins or adjusting plugin configuration respectively. The final possibility is that the core itself is pausing for one of several reasons, such as a compiler reset (rare but unavoidable) or some configuration options, Advanced Block Linking being a particularly likely culprit – try