Thanks for the addictive game!
Over 10 billion angel investors with max upgrades and still impossible to get 500 of all businesses in a reasonable amount of time. *sigh*
A few ideas:
How about upgrades to the rate we accumulate angel investors? Or increase of percent per investor above 6?
How about purchasing interface upgrades ($ per second indicators on each business, ROI on purchasing one more, etc.)?
I would also suggest not visualizing when the bars move too fast for the frame rate. Instead, keep the bar full and stop refreshing the "Almost done!" text, since there's no way it'll ever change from that moment until the next reset.
 "Idle Blacksmith"){kind=icon}
 "AdVenture Capitalist"){kind=icon}
 "Learn to Fly Idle"){kind=icon}
 "Achievement Unlocked 3"){kind=icon}