How to fix FPS drops during cloud traversal in Once Human on Galax B360M-M.2?

FPS dropped from 120 to 48 in clouds. I tried changing power plans, but it didn't help. I used GamePP BIOS Load Line Voltage Adjuster to set LL to L3. I adjusted VCCSA voltage to 1.25V. Cinebench R23 score rose from 35800 to 37200. Temperature dropped from 95C to 82C. Frame rate stabilized at 95-110 FPS. I exported the BIOS config as a backup.