If they are that laggy (and they are) then why don't you use your own methods of transporting energy? Yeah.. Because shafts and belts and stuff are even laggier. And you can't really deny that.. And I dont see the need to use that much hundreds or even thousands of conduits if you use only 20 machines.. Unless you are powering your own stuff with it, which comes again with the "Belts would be a worse option, and you know it."
For the amchines part.. Besides the cyclic assembler, i can't see another machine with that much lag, so its mostly the conduits that are not optimized.. But yet again, there is your option which isn't any better...
And i mean that its pretty strange to see someone actually using cyclic assemblers, as there are other blocks with the same function that are far less laggy.
I just want to point that I like rotary craft, and I use it, so i know of its flaws, also I use thermal expansion and I know of its flaws too.. And its definitely not a master piece of optimization.. But blaming all the lag to thermal expansion is just nonsense. The first thing to do something good is to understand and accept its flaws, and you are blaming other mod when you definitely have at least 50% of the lag in your bag. Im not a huge fan of thermal expansion, I prefer mekanism much more, so I dont use much thermal, but i definitely got some thermal expansion going on in my game and its not lagging me as it does when I go to my void age that has the energy and automated ore processing going on for my quarrys (which is rotary and a little bit of reactor ).. Please, don't take this as an attack to you or your mod, I'm just trying to do things sincerely, blaming other is not good. THermal expansion has its flaws, but rotary craft is not really optimized and has a huge performance impact in most of the users. You can optimize it or blame thermal expansion, time will give the proof. And I know you will not accept this fact, so I'll let it rest there, I dont want to start conflict over something like this. (And just a recommendation, when defending your mod, try to not throw dirt on others people mods, that doesn't really go well with ANYTHING. If there are fanboys saying that thermal expansion is the master piece that every mod should be, then let them be, they are wrong, but blaming the mod because of the users is not correct.)