Prioritise getting the Arc Scraper (get the consumable if you can afford it) and Plasma, and their upgrades. Order of priority if you want things to go quicker
Plasma > Scraper > Demux > Drone > Reader
The Depth Diver consumable will also help. You typically won't need more than 30 cooling ever, and coherence rapidly drops off in use after 20. Security at 20 will do for most of the game, and effectivelty maxes at 50. Clock speed you can effectively max at 30,uplink goes up forever and affects literally everything.
