Question Rainbow Six Siege - - - low FPS and FPS drops on a good PC ?

Apr 1, 2024
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CPU: I5-9400F
RAM: HyperX Predator 3200mhz dual channel
Motherboard:MSI Z390-A PRO
GPU: RX 7900 GRE
PSU: Corsair VS650

Only in R6 i have fps drops/low fps, i can change graphic quality but it doesn't matter I still have low fps
I've tried almost everything: reinstalling r6, overclocking, undervolting, running r6 as administrator, turning BAR on and off, installing only drivers without AMD Adrenalin
it's probably not the PSU fault because I can play cyberpunk or other games on ultra for a few hours with 300w consumption and nothing happens
I am pasting a link to a video on YT that shows what is happening

View: https://youtu.be/Q2LJEb_egnI?si=oESduKckMePDG0Zj