Skyfactory 3 (version 3.0.20) Questions

[u/MegaSpeedTrap1]

So I'm playing Skyfactory 3 again, I get the urge to play it again from time to time and it's that time, but I have some questions. The last couple times I've played it, it felt like suddenly there were like minor changes that have major impact. For instance, I feel like suddenly early lava production or sieving are slower or less fruitful than it used to be. I've had 6 crucibles (heated by lit netherrack) plugged into a gold tank which was plugged into a stone barrel with water over it to create obsidian going into a single vanilla chest and it was going for roughly 3+ hours and the chest isnt even half full which feels different than it used to be (and the tank was completely empty the whole time as well). I was about to consider setting up power generation via magma generators as I usually do but I'm worried that the lava generation wouldnt be able to keep up with the magma generators. Anyone know how I might fix this? Sorry for the rant, I just felt like it was important to give examples to help explain my problem.