I rarely prune it, it just sprawls for me. it's not even 3 feet tall and about 3-4 ft wide. I had one at my other house that was the same way. You sure it's Paisley? There is another spotted one I had it my other garden that was tall.
Abutilon (Callianthe picta 'Thompsonii')
They are fine with pruning. In heavy frost winters, I have some that I have to cut down to the ground. Paisley has never been one of them though.
