Well here's the thing. Blizz-ABS doesn't run well on 500x500 maps for obvious reasons. First of all, the constant AI checking and calculating. Blizz-ABSEAL runs fine just as is. Getting another Anti-Lag script is pointless as it wouldn't even help. The only reason it works flawlessly on the map without Blizz-ABS is because of the fact that Blizz-ABS isn't there constantly updating the AI, the spawners, groups, critters, etc.. For what Blizz-ABS does, it keeps it pretty damn lag-less, just not on large maps because at that point its attempting to update a lot.