A second tweaking point: you should severely reduce the energy a solar panel produce in a class O system. Even without any amelioration, I am gaining more than 1M/sec (fully increased, it is a joke, the 10T capacity is filled up in a few secondes).
I like your last upgrade but I am not absolutely sure allowing to convert Cash into Ore was a good idea for high level play.
With this, I instantly passed from 300T/gem to 100P/gem. And I can probably keep it up as it seems the return investment on the Extras amelioration grows faster than its price.
Suggested feature: a conquer all research (pricing for example at 1G SP for the system wide thing, 100G for the galaxy etc). Feel free to pump up the multipliers (for example most difficult star system times most difficult plante times number of planets for a galaxy)
Sorry if I ask this question, but is it intended that the collect all Universe does not collect science point ? It is a bit annoying to visit manually the 20 planets I set up for institute.
Moreover, despite it not consuming my Science points in stock on my institute, clicking on this universe collect all does give me some SP.
Aerow: going to max level is actually quite "fast": less than a day. The speed ups are indeed required, but if you follow the tips about extras upgrade, their cost becomes negligible (currently, one crystal allows me to buy >70k 168h upgrades)
 "Helixteus"){kind=icon}
Should be fixed now.