URP two cameras rendering performance issues

So I have a camera that captures the UI that is a interactable computer desktop and then send the images to a render texture that displays on the monitor screen model. I am having like 20fps when that happens.

Someone can help me to improve my game performance?

I got a possible solution. I created anotherer URP renderer without SSAO and when I activate both cameras I deactivate the SSAO. This made my performance much better!