Hi @lfr ,
The tips we shared earlier are for both desktop and mobile. And another tip is: if your website is working on the old version of the template in Hubspot then for improving the site speed go for the Hubspot boilerplate theme instead because the folder structure of the HubSpot boilerplate theme is highly optimized and it will improve the site speed. you can try the speed by building up 1 to 2 pages in HubSpot boilerplate.
Hope this helps!
If we were able to answer your query, kindly help the community by marking it as a solution.
Thanks and Regard.