Why does my Zotac RTX 5070 Ti stutter in Delta Force fights?

During intense firefights, the stuttering was unbearable. I tried lowering textures, but it didn't help. Using GamePP, I set render to 80% and enabled DLSS Quality. I adjusted sharpness from 50 to 70. Frame time dropped from 15ms to 8ms via AIDA64, and temp stayed at 68-72C per HWiNFO64. 3DMark confirmed stability. This setup saves the experience.