[Russell Sobie]

I want to say the quality setting has an effect on how accurate other drivers elsewhere on the track from your car are. I leave mine on high quality, and the only cars that look a bit erratic are those that have questionable connections to the server in the first place. In a lot of cases, apps are only going to show information for YOUR car, even if you are in the POV of another driver. I've only recently noticed that Helicorsa and Car Radar both actually work on the car you are spectating (which didn't used to be the case?).

All that said, I typically glean a number of tips and tricks from faster drivers via replays, even if it isn't a perfect representation of what they are doing.