Hello, Rowan Keizer,
We suggest that you turn off the “Mobile User-scalable” and Mobile Optimization option in (XStore > Theme Options > General) if you are using a cache plugin for mobile devices, as both optimization options can conflict with each other and will not improve the speed together.
It is necessary for you to identify which specific option from any third-party plugin is conflicting with our feature. Once identified, please decide which option you would prefer to disable and which to retain to ensure optimal functionality.
Best Regards,
The 8Theme Team