You are introducing "repetitive micromanagement" and more "babysitting involved". As is, you put the product in and all you have to do is take it out when it's done, which happens to be after 5 minutes.
You seems stuck on this "5 bricks for the time of 4, maybe a little bit more cost for balancing purposes" idea. 5 bricks of shit gives you 50 shits, your player only has 40 slots in his inventory. Now imagine how ball achingly tedious it would be to have this one shipment with 50 shits in it(assuming you can only "extract" the processor when it's fully done like the one we currently have) which is already 10 shits more than you can carry, and also have to worry about having fuel around for the thing (which you're suggesting should be oil barrels, great, now i gotta also go through that ordeal of getting oil shipments in the mean time to feed my processor baby) and having tools to repair it around in case it breaks. So you're still making multiple trips to whatever needs tending to. You haven't fixed anything, there's no quality of life, you've just optimized 1 thing by adding 3 other things to worry about. Oh and let's not mention the potential loss if anything happens with the server, your computer, or your internet conection. Imagine losing 50 shit baggies all at once because your internet went out and hasn't come back until after the server restarted.
You used to be a king, with your little shipment and processor timers, every little move optimized down to the milisecond. Now you are crying in the bathroom floor of motel room 9 with your dick in your hand because you grabbed oil barrels instead of repair kits as you were going to sell your full inventory of shits cause there's 16 more waiting for you in the shipment before you can do anything else.