Performance Issues on wordpress avada theme

Good morning, I’m the administrator of my website. Yesterday we installed Cloudflare, and several of our web features have stopped working:

The WordPress backend is performing poorly. It’s very slow, taking around 3 minutes to update any style changes.

The JavaScript functionalities that we have added over time have stopped working. We are using the Avada theme for WordPress with version 6.2.2 of the WordPress core.

We have disabled Rocket Loader, and we have also tried disabling JavaScript and CSS minification, but the issue persists.

Thank you very much for the advice. But what happens to me is that it is in the back of wordpress, the visual part works correctly. sometimes lose connection