If you're getting bored by playing as a crew then you're missing the point of the game! Why don't you just play it as is and try and solve who the impostor is. IF you want higher chance of being a impostor then join a game where there are 3 impostors! I gave my feedback to innersloth asking them to keep extending the ban time if the player keeps leaving the game before it even starts. Like ban them for 5 mins, then 10, then 15, so on and so forth. Then give the player a warning each time so they know they will get banned for longer if they keep leaving games. This will force the players to play the game as it was intended to be played!
It is not my point that being crew is boring, I just want to give some advice on how they will handle the players who quit when they know that they're not the impostor. Here's my problem, "Whenever the game started, 2 or more players quitting the game, if you are the one of the crew it is pretty annoying that 7 players are remaining but still, 3 or 2 impostors left." If those impostors killed 1 or 2 crew/s it's probably an easy win for them.