Common problem I heard about a lot of times and I assume your sound sometimes skips. Like on my PC. That's an issue Rockstar needs to fix really quickly. It's so annyoing.
The main issue I get is the LOD one, where driving a car through city makes road, buildings dissapear or be replaced with LODs (the only quick fix is to press esc wait a second and then press esc again, so textures load up). The other thing that I noticed was that after computer was off for a while and then turned back on again the game seemed to have minimised LOD issue (no more dissapearing roads, buildings, or low res textures). Unfortunately after an hour or two the problem came back.
Yeah I now read on reddit some users also have it and it ranges from low end to high end pc's. Now I cannot test it but some people said to try disable Shadowplay, enable v-sync (or disable it) and set GTA V priority to high in task manager. Also if anyone is getting weird mouse lag, stutter while turning to the right side, change raw input to direct input in mouse options.