KICKR Snap issue

Just bought my first smart trainer and after a quick 15 mins yesterday evening setting up seems to work well with Zwift, and a game changer for for feeling like your actually connected to the game, also seems my power is much better than the dumb trainer and Zwift algorithms lead me to believe :blush:.
My issue is with the trainer it seems to have a vibration at low speed, enough to vibrate through the whole bike, is this likely to be an issue with the trainer?, or possible rear wheel / tyre issue?, seems to be fine once up to cycling speed. I didn’t have this issue before but when I set the trainer up I also put on a trainer tyre that was an absolute pain to fit.