Need help with tires

HI all
I have a Laotie es19 with the OEM street tires is came with
I have gone over this scooter, tightened everything, inspected everything
No matter what I do, how I mount the front tire, different tubes ETC I cannot get rid of the wobble and shake of the tire after 40mph, I really thinking it has something to do with the tire and the tube, this is a split rim tire with a tube
I am looking for a pure street style tire in the size of 10x4.5 -6
Does PMT or any other manufacturer have a crossover tire that will work with this scooter?
TY for all the help