HELP] My game won't go on fullscreen on lower than native resolution : r/PCRedDead

Anyone know why there's shimmering on the trees? Audio in the video explains more. : r/PCRedDead

RDR2 PC Optimised Settings : r/PCRedDead

Unable to play in fullscreen lower then 4k. : r/controlgame

Stuttering every 5-10 seconds : r/PCRedDead

Red dead redemption 2 we'll not go full screen on my computer : r/PCRedDead

Simple comparison of TAA blur ruining the game details. TAA is enabled on both (high setting) but the game was paused on one screenshot so the blur was totally gone. : r/PCRedDead

HOW TO PLAY GAMES ON FULL SCREEN MODE AT LOWER THAN YOUR NATIVE RESOLUTION

Pixelated hair/fur/eyelashes with DLSS set to quality/all ultra (notice his eyelashes/beard). Everything else looks great with DLSS on, just the hair. HELP!!! : r/PCRedDead

Shadow and hair problem : r/PCRedDead

Red dead redemption 2 we'll not go full screen on my computer : r/PCRedDead