I'm personally thinking of making a mod that adjusts the distance you move based on the time the frame takes to render. Basically this makes it so you aren't incredibly slow when lagging, but makes you run the normal speed. Of course it will cap at 5 tiles or so so you don't warp all over.

I'm just a bit worried that it will get picked up as a speedhack, as technically you are covering the same distance over time but you move in larger leaps when lagging.