From the attached images, it looks like like the late game scales up entertainingly.
But (and this might be more of a personal failing than an issue with your game) the number of rounds I’m having to click through with absolutely no arrow hits or income even after upgrading “more accuracy” twice (didn’t do anything, I guess?), and how the upgrade screen is a pain to click/read, I unfortunately didn’t have the patience to make it that far myself.