If you play the game on a potato, and you own several slaves, you may find the latest releases slow. Because of new tab "Arcology", every time you return to the main page, the game loads in background the full list of your slaves.
To speed up the game, you can get rid of the new tab by inserting two slashes before the line
tabs.push(arcologyTab());
either in FC_pregmod.html or in src\js\slaveListing.js (line 997).
JavaScript:
//tabs.push(arcologyTab());
Maybe, in the next future, the tab will become optional. I don't think it is right now, I didn't find anything in the settings.