Here's something to think about. The leverage ratio on the Turner DW 5 Spot appears to fall from 3.4:1 at the start of the travel to 2.6:1 a the end of the travel. This means that the suspension gets harder to compress towards the end of travel, i.e. it's progressive. That established, try winding off some of the high speed compression damping and see what effect that has.
At the moment, the bike's suspension design will make the suspension 'feel' stiffer the deeper you go by mechanical leverage. The HSC will be adding to that and consequently you may have more than you need.
It's just a thought. The factory settings are just a starting point. I've ended up winding on around 85% of the LSC on mine, winding off all but about 10% of the HSC (my frame is also progressive and the profile looks a lot like the DW 5 Spot) and I've tweaked the rebound a little on the low speed to (left the high speed rebound alone so far).
Make a note of where you started from and just experiment a little as you will be amazed how much of a difference it can make.