It's so stupid because in the end it's just down to RNG and luck with the spawns. I opted out on the drone modfier but slapped everything els (like 38-40 multipliers including brawn) on and got 2,67 M solo. But whenever I have the drone modifier on it seems like it's messing with everything els too. I just killed the tormentor in the last room, destroyed the splinters and had a good 3,5 minutes left but then had to spend all that time waiting for enemies to spawn in - seemingly because drones were on, which in themselves werent a problem to kill. Using solar warlock.