i occasionally go to race monitor, and there i see many drivers with 0 fuel next, some drivers that fly off the track, are back on track in next moment, with significant speed, not like standing on the track as far as i am concerned that is cheating, or am i wrong ?
the 0 fuel part is common for me when spectating others so I don't think that's an issue the flying off the track part might be desync, it's really apparent when someone has bad ping and the lobby has high ping limit a replay would be helpful