Wow, many people argue how optimized GTA was and then this. I wonder how much money they lost because of this. I often stopped playing because it just took too long to load.
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GTA Online is a huge, enormously buggy and slow mess that will generally struggle to run at 80 fps on a top-of-the-line 2020 system (think 10900K at over 5 GHz with a 3090) and will almost never cross the 120 fps threshold no matter how fast your system is and how low the settings are.
I’m really confused as to why games are determining anything whatsoever based on the refresh rate of the screen.
Skyrim has this same problem and not being able to play over 60fps is the reason I haven’t touched the game in years.
Generally, a AAA console game will target 30hz or 60hz. Therefore the timing loop is built to serve updates at a steady pace of 30 or 60, with limiting if it goes faster. Many game engines also interpolate animations separately from the rest of the gameplay, allowing them to float at different refresh rates. Many game engines further will also decouple AI routine tick rates from physics to spread out the load. Many game engines now also interleave updates and kick off the next frame before the first is complete, using clever buffering and multithreaded job code. All told, timing in games is one of those hazard zones where the dependencies are both numerous and invisible.
When you bring this piece of intricate engineering over to PC and crank up the numbers, you hit edge cases. Things break. It's usually possible to rework the design to get better framerate independence, but doing do would be invasive - you'd be changing assumptions that are now baked into the content. It isn't just fixing one routine.
If you then try to run the simulation in parallel with the rendering (rather than between some frames) it is even more work, since inter-thread communication is hard.
This stuff might seem easy for very good programmers, however on a game you want to hire a wide range of programmer skill and "game-play programmers" tend to be weaker on the pure programming front (their skills lie elsewhere)
https://www.nexusmods.com/skyrimspecialedition/mods/34705 >Refresh rate uncap for exclusive fullscreen mode.