You are complaining about your rails not being OP enough, that's what you do.
Thaumcraft is cancer, to any technical modpack. That's why I left kirara.
Rails are ok, and unless you play on a potato, even with PFAA chunks load fast enough when using HS rails. Use electric/redstone rails if you do not want to deal with locomotive supplements.
If you need to travel big distances, build nether railways.
But yeah, sure, go ahead and justify Thaumcraft. That's how you deal with being OP.