I used Lightning (https://f-droid.org/en/packages/acr.browser.lightning/ https://f-droid.org/en/packages/acr.browser.lightning/) to open it and worked fine for

I used Lightning (https://f-droid.org/en/packages/acr.browser.lightning/ https://f-droid.org/en/packages/acr.browser.lightning/) to open it and worked fine for me out of the box (I don't think I set any special settings for performance). Firefox on a laptop is also fine of course, but that's a laptop.