How do I fix the sluggish roll animations and motion blur in A Plague Tale Requiem?

I was losing my mind during the forest stealth sections. Amicia's roll animations had visible ghosting, making every move feel like wading through molasses. I tried clearing the system cache to free up bandwidth, but it did absolutely nothing; the latency spikes persisted and the immersion was shot. I switched to the GamePP Hardware Sensor Page and saw the default timings were way too loose. I tightened them from 36-40-40-76 to 32-36-36-74 and set the voltage to 1.35V. AIDA64 confirmed the memory stayed stable at 52-58°C. The frame generation interval dropped from 14.5-18.