No it's not its on xboxomg, so many possible problems. this on PC? are you overclocking your GPU? is your system thermal throttling (bad ventilation, running little hot causing hardware to run slower than designed to not overheat). are you using a hardrive, is its 3.5inch or 2.5inch, or SSD is it sata(3 or otherwise) or is it NVMe based or PCI based. or running it from USB drive? i ask because it can very well be driver based if your storage volume has a bad driver it could cause failure. you have to list everything basically.. platform, scenario, setup, and what you have tried thus far and has failed or shown signs of working.
i found if overclock my R9-270X at all, even smallest bit GTA doesn't like it, not sure why, i been able to grab an extra 150MHz on the core and extra 500MHz on the memory without overvolting and its very stable on furmark and other benchmarks in 1440P and 4K tests (DX11 and 12) but GTA will get stuck at black screen or instantly kill proccess and ask if i wish to start up in safe mode.
its same when i run my PC and the temps start pushing 75C (R9-270X is a space heater in a closed case, even with fans)
I tried that already and still nothing