Improving mobile speed performance can be a bit tricky, but with WP-Optimize, there are a few strategies that could make a big difference for your site.
I noticed you’ve already enabled the option to generate separate files for mobile, which is a great start. It might be worth double-checking your caching settings to make sure everything’s optimized for mobile. If you haven’t already, enabling cache preloading could help speed things up even more.
Another thing that could really help is lazy loading. This feature makes images and videos load only when they’re about to be seen, which can really cut down on load times for mobile users. WP-Optimize lets you customize this, so if you run into any trouble spots, you can exclude those specific parts of your site.
Also, have you thought about converting your images to WebP format? It’s a more efficient format, especially for mobile. WP-Optimize can handle this automatically if your server supports it, which could lead to faster image loads.
You might also want to extend the cache lifespan for static files. Setting it to around 28 days can help returning visitors on mobile get a faster experience by using cached files.
Lastly, combining and minifying your CSS and JS files could reduce the number of requests your site makes, which would improve load times on mobile devices. It’s a simple tweak, but it can make a noticeable difference.