Also be sure you are selecting the tracks from the rhythm choices and not the SOLO tracks.... and be sure to check that the tempo recommendations for the tracks are as close as possible to the actual tempo of the song.

If they are still too busy, try some of the surrounding similar style tracks. There is quite often, a large difference between the way 2 RT will render out, even when they are setting side by side in the list.

Another thing to look at is the "musician" on the tracks.....they all have different playing styles. That is a factor.

When evaluating a track I consider all those things. If you have the 2014 version, you have the track preview feature where a sample of that track plays so you can hear what the musician is doing before you take the time to render it out.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.