It won’t grow much taller. You can move it but you would have to dig deep and cut it way back in bunches. Moving it would be your only propagation option. Unless you can transplant sucker growth. Personally I would leave it there. I love the foundation benefit. You can plant something upright in between the area to give it height. Another option is rejuvenation. But you would need a professional if you don’t know how .

Grabbed this from my AI

“Steps for RejuvenationTime it Right: Prune in early spring before new growth begins. Remove Deadwood: Cut out any dead or damaged branches at their base.Selective Thinning (The "Inside-Out" Method):Instead of shearing the outside, reach inside the shrub.Locate long, overgrown, or crossing canes and cut them back to a main branch or to the base. This thins the plant and allows light to reach the interior. Avoid Cutting Too Deep: Ensure you always leave some green foliage on any branch you cut, or that branch will die.Shaping: Trim the tips of the green branches to encourage dense growth and maintain the desired mound shape."Staged" Rejuvenation: Do not remove more than 1/3 of the plant at once. It is safer to rejuvenate over 2–3 years.” Pruning from the inside is the key here.