With the changes a few years ago wherein T1 production now requires reactions and extra materials, I think it is time CCP considers increasing the max number of copy jobs capsuleers can run at one time.
Of course it’d be great to have more research and invention slots as well, but mainly my concern is copy work. Of course this is personally motivated.
Example: Used to be, I could run a BPC set for an Orca and a Freighter at the same time. Now, with all the new stuff required to build these items I need to run quite a few more BPO copies and I do not have enough slots, to keep the labs moving efficiently if you will. I have to stagger or alternate and its just not really fun like this (in my opinion of course).
TL;DR- CCP, please consider increasing copy job capacity (and possibly invention, TE and ME capacity) in light of the increased complexity to build items.