Why does a patchy update, ie 1.14.6.0, claiming to improve the performance, ruin the FPS?

i7 10th gen, 32GB, RTX2060, SSD

no rolling cache

Never experienced such pesky stuttering in the sim before 1.14.6.0.

I’m not sure who is in charge of performance optimization task, but, IMHO, Microsoft should hire some professionals to do the job and let Asobo tweak the graphics only…