OP, don't know much about suspension forks, other than some are adjustable to a degree, some offer lock out, while others are just pogo sticks. But you should swap out the tires. These are the ones that I'm running (OEM on my bike). Just make sure that you keep them inflated properly or you will get pinch flats.*

*Got 3 in two weeks when I first got it due to my own ignorance. I thought I could get by with just using the compressor at the c-store/gas station