Upscaling seems to be pointless in Black Ops 6 right now, so maybe hold off on turning on DLSS/FSR/XESS
Briefly

Using upscaling techniques such as DLSS, FSR, or Intel XESS has become essential for improving game performance on PC, but in Black Ops 6, their effectiveness is questionable.
Multiple players on Reddit report minimal to no increase in performance when using DLSS, FSR, and XESS in Black Ops 6, with some even experiencing decreased performance.
Testing by a Reddit user showed that while DLSS occasionally provides a slight performance boost, the clarity tradeoff and potential performance drops with other methods can be frustrating.
The lack of responsiveness from Treyarch regarding these performance issues has left players uncertain about the effectiveness of upscaling methods in Black Ops 6.
Read at VG247
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