Hey guys, so I'm having issues with FPS fluctuations and performance in some demanding games at 1440p. Most are fine, for example the esports ones like LoL and Valorant etc can be run on a dying potato, however some of the more demanding games like PoE or Escape from Tarkov are not playing nice. Lowering graphics settings most of the time doesnt seem to help all that much. I've looked into the 2080 Super's performance in forums, and the information seems quite conflicting. Some say no way you get above 60 or 70 fps on high at 1440p on high end games, and some say it should be fine. This is my first 1440p setup so i have nothing to compare it to personally. Looking for some insight and advice, willing to get some upgrades if necessary.
Your machine is still really powerful, and should be perfectly capable of running most games at 1440p / 60. But you are running a widescreen 1440p monitor, which obviously takes more power to run than a standard one (more pixels). I also wouldn't expect you to get more than between 60-90 fps in demanding games on high / ultra settings on that resolution. Seems perfectly normal to me.
I think also the games you mention are perhaps not optimized very well, so they demand a very strong GPU to be played at higher settings.
If you really want to hit 144 fps like your monitor is capable of, you will need to get a more powerful GPU. Personally, I don't think it is worth the money. I would wait another year or so at least to upgrade.
If you are seeing sudden dips in performance (frametime issues), there might be something else going on. Again, either the game is just not optimized, or perhaps there is a software issue. Make sure to update all your drivers to the latest version (especially GPU driver), try reinstalling the game, or if all else fails, reinstall windows. What you can also do is take a look at your GPU temps / clock speed. Perhaps it is clocking back under load due to dust buildup, and/or high temps.