I had the Phoenix Dolphin for my second plane. I'm wondering if your CG is too far forward. That plane flies just like a trainer, maybe a touch faster but nothing you shouldn't get used to in a day or two. You should be able to bring that plane in pretty slow.

The trick to slowing down a landing approach is the proper CG. You should be able to use your elevator to push the tail down into a slight nose-up attitude to slow down, using your throttle to adjust descent rate/glide slope. Nose down to pick up speed, nose up to bleed off speed.

I personally wouldn't mess with spoilerons on that plane, but that's just me.

What engine and prop are you using?