As much as I agree that some of the IC's I added could cause lag, most won't. only the Self Triggered, or ST, ones can. Those IC's can be disabled easily in the plugin configuration, the other IC's will not however, cause lag. I believe that these IC's will not cause lag, but if you believe they may, turn off the ST ones in CraftBookCircuits configuration files. I would however, strongly advise against doing that, as the ST IC's do not cause much lag in comparison with many things on the server. Also, even if everyone believes it will lag, the 'cluster system' should fix any lag issues.