Can't figure out how to even start EC2

I've been following a few guides and go through Eternity Challenge 1 2x. I see that i'm supposed to EC2 next but I can't even unlock it. it says it requires 1450 Tickspeed upgrades in Time Dimensions and, after 12+ hours of letting things run, i'm only at 1100(ish) tickspeed upgrades that seems to stall out. I'm not sure if there's a trick to getting tickspeed upgrades any faster or not.