Using a Different Theme for Desktop and Mobile

Hello,

I have a website running on WordPress, and I am satisfied with its performance on desktop, everything works great. However, the performance on mobile is slow. Is it possible to use the same theme for desktop while using a lighter and different theme for mobile?

Something like this maybe, never tried it myself though. https://wordpress.org/plugins/any-mobile-theme-switcher/

Yes, it’s possible! You can use a plugin like Any Mobile Theme Switcher to load a different, lightweight theme for mobile while keeping your current theme for desktop.
and also consider optimizing your existing theme for mobile using caching, minification, and lazy loading to improve speed without switching themes.