Yeah but playing with friends usually only last 1 hour or two untill someone has to go. Like 1 lvl per session. If u don't play with pubbies you will be one of those weak (wut am i supposed 2 do?) low levels.
1 level per 2 hours? Are you doing only normal heists? At almost 70 I often get 1 level per heist.
I also definitely had total morons at rank 80+ but it's true people start to know how the game works by that level.
I feel this game could do a much better job at letting you play with less than 4 humans. As it stands you can only do some stealthy things alone, or only normal difficulty which makes things incredibly grindy.