I’ve found it in a new location (not the one from previous answers on this forum).
But still, on mobile, it’s disabled but on desktop, it is still has a blank white page in the middle.

Can you help me resolve this, as well as answer my question about my page speed even if I’m just started to build my home page, it is really slow, how to speed it up.

If you check my website on page speed by Google, on mobile and desktop score it’s the same
and I have almost nothing there?
Can you clarify what to do and why is that so?
Check the new screenshot.
Thanks