The bundles of money flashing up over the purchase bar.. EVERY SINGLE TIME you purchase an upgrade.. is REALLY annoying, and makes it really hard to see if you can afford the next upgrade. (I only purchase stuff in 100's).
Especially everytime I reset, I can go to around ~2k of everything (1.7k Octodecillion AI), it just slows it down.
I can understand at big ones, or landmark ones.. but not everytime you purchase something.
Pretty easy.
Very easy way to upgrade EVERYTHING is to farm level 7.
Just complete it, and press replay.
Do it until you're bored.. or until you have around 1100 presents.
= easy win