Is there any way to improve the radio for a playlist?

[Frebles1]

Hi all, hope someone can help with this

So, I have a few different playlists that I use on Spotify that reflect different genres. I have one playlist called 'Venus Fly Trap' which I created to contain sort of trippy trap music. The problem is though, the radio for this playlist is full of lo-fi and other chill-hop type genres that don't really match the sound that I wanted to get out of the playlist. 

Does anyone know of any good methods for making the playlist radio more closely reflect the genres that I want to hear?

[ecopen]

I have lots of similar issues with Playlist Radio stations. For instance, I have a playlist with groovy pop like Allen Stone and some funk. Somehow, the radio will only play me instrumental jazz like Joshua Redman, despite there being perhaps one or two such songs in the playlist. How can these playlist radios get improved? Thumbs up and down appear to have no effect.