For those who are slow but using Chrome. I offer you my site settings with regards to the forum.
Basically the only two allowed are Images, Javascript. I turn off basically the rest of the site settings. Loading is alright on my end.
Alternate to Chrome would be Firefox, Vivaldi.
For handphone, you can try Via browser.
Most Android phone has refresh issue as the process are hijacked by other apps. You can use Android Assistant much like task manager to kill off or Force Close the rest of apps. This way, once you click the browser app, it will load and response according to your phone SIM connection / Wireless connection speed.