Why does Battlefield 2042 drop from 60 to 45 FPS in mass battle scenes on Galax B360M-M.2?

FPS drops were frustrating. Increasing page file made it worse. I used GamePP BIOS Load Line Voltage Adjustment Wizard to set timings to 15-15-15-38 and voltage to 1.25V. MemTest86 confirmed zero errors. AIDA64 showed memory stable at 46-52℃, ensuring consistent 60 FPS performance.