Suarez hasn't gained velocity from two years ago, 2 seamer 88-95, 4 seamer 92-95.
Difference is he's relying more on a 2 seamer/changeup combo, the 4 seamer has become a "show me" pitch, and the slider an afterthought. Probably needs to sharpen the slider to become a starter and go through a lineup 2-3 times.