Why does my new ceramic bike frame feel so much stiffer on rough roads?

I recently upgraded to a ceramic-coated road bike frame because I heard it’s both lightweight and durable. The bike shop recommended it for its stiffness and responsiveness. However, after a few rides on city streets with uneven patches and some cobblestones, the ride feels way harsher than my old aluminum frame. I've double-checked tire pressure (around 80 psi), swapped out the saddle for a more cushioned one, and even tried different gloves to absorb shock. I’m hoping for a balance between efficient power transfer and comfort, but right now it feels like every bump is jarring. Has anyone else experienced this with ceramic frames? Is there a setup tweak or component swap that can help smooth out the ride without sacrificing the frame’s performance? Or do I just need to get used to a stiffer feel with this material?