RXV rides like a one horse wagon!

[Chainsawman]

I have an ‘03 ezgo electric that has always ridden fairly smooth. I bought a used 2010 gas RXV awhile back, and it rides very “rough”. I put larger tires on it and let some air out, but it’s no better. Is this common with the RXV’s? Looks like a different frame style than my ‘03. Thanks!