Your playlist consists of the most popular hip hop artists today. Spotify supplies about 15 playlists that do the same thing.
If you do some research and find gems that haven't been heard by everyone on earth, it will help you gain some following.
Look through my playlist and let me know how many artists you have never heard of. I'd be interested to know if you've heard of most of them. Then listen to the songs and you'll see that they are almost better than what's being put out by all these big-name guys.