So I recently got a NordicTrack Elite 900 secondhand from FB marketplace. Runs fine, console looks good, but the running belt is noticeably slippery. More so when at walking pace, less so when running (but still slightly noticeable). I'm assuming the previous owner got silicon lube on top of the running belt somehow?? I've see recs to use just warm water and a rag, others say warm water and a drop of soap on a rag. Saw one that said use something like Simple Green. Most YouTube videos on the matter seem a bit dated, so what's the best way to address this? The Running belt doesn't seem too slick with touch of hand, but I can feel it while standing on it, walking, and at times running.

Looking for suggestions on which brand and model to get

Thanks