Well, there's a much smaller player pool (clearly) than in standard chess: have you had a look at what time controls are being offered from other people's challenges? When Chess.com retires V2 (whenever that is), it may get some more traction too.
why its so difficult to playing chess here?
Oh, sorry - I thought by "random" you ment Chess960.
So what sort of time control are you looking for?
With no increment? Normally that's pretty quick, as it's one of the most common blitz controls; I've never had to wait more than 30 seconds for a game, but admittedly, I don't play at that time control much. How long do you have to wait?
waiting too long to play random