Did you accidently revert all the performance changes in 0.4.0c?

Game was running smooth and low impact on CPU/GPU on season launch 0.4.0. But as soon as 0.4.0c dropped like a week ago, everything immediately changed back to massive demand on CPU/GPU an crappy performance. CPU Spikes, GPU Spikes, computer fans going into omega rocket mode, stutters, server lag. Everything.

What happened?