Hello,
The speed of the Dashboard is independent of our theme. Maybe support of wp rocket plugin or your hosting provider will be able to help you with this.
Check descriptions of all plugins that are activated on your site and disable plugins you do not really use because every additional plugin slows down the site a bit.
For example, you are using Variation Swatches for WooCommerce and Additional Variation Images Gallery for WooCommerce , but our theme already has Variation swatches functionality – https://youtu.be/LgzC4iK-j6A , and Variation gallery can be activated via Theme Options. If you decide to use it from plugins, disable our variation swatches via Theme options.
If all changes in site content already done, go to Theme options > Speed optimization > enable “Static Blocks Cache” and “Remove Query Strings From Theme Static Resources” and test the speed. If there is no improvement, you can disable the options back.
You are using Slider Revolution, so read their article also – https://www.sliderrevolution.com/tutorials/optimizing-load-speed-and-performance/
Did you test the site here – https://tools.pingdom.com/ when the maintenance mode is disabled? Provide URL with results or screenhot of results (for example – https://prnt.sc/mTrtVZbKh1Bd ) via the Private Content area here, so we can take a closer look.
Regards