RolandDT

(Sorry for the late reply - catching up on this thread.) It's because the game is more CPU bound @ 1080p versus 1440p. This game is heavily CPU bound, and appears to be worse in A20 than A19 (I am having MUCH worse framerate issues in this version versus past versions). I'm sure they'll get to the bottom of the issues, but for right now there are times where the game is unplayable for me, and altering graphical settings has minimal effect because it's not a GPU issue but a CPU issue. FWIW - I run a 9700k OCed @ 5.0GHz, 32GB of RAM (3200MHz, very tight timings), RTX 3080 (EVGA FTW), and multiple SSDs (OS on an M.2, games off a SATA SSD), running on a 1440p UltraWide G-Sync monitor.

I'm so glad I'm not the only one experiencing this! My FPS will start out fine (locked at 60 FPS), but the longer I play sooner or later I will just hit a spike that dumps my FPS into the 20s or less, without warning, and will not go away without a restart (not really possible when hosting a MP game). I have an i7-9700k (OCed, but OC vs non-OC makes on difference), RTX 2070 (OC model, but not OCed currently - again, no difference in the FPS issue whether it's OC or not), 32 GB 3200MHz CL14 RAM, and running both an NVME SSD for the system and a standard SATA6 SSD for the game. This issue has persisted since at least 18.4, and possibly earlier. The only "fix" I've found is with the new dynamic resolution system. Enabling that allowed me to regain my full 60 FPS without having to restart. Being a MP game, I did not experiment further at the time.