Tile size y/x 0/0 doesn't work it has miniums and maximum size.
Set them to your screen size then. There's definitely no maximum (or at least, the maximum isn't any smaller than the screen)
But I noticed that from menu Browser - > Images and disable background images, solves prety much every display problem. Even Amiga.org looks about right. Menu text are readable etc. nothing is in wrong place etc. Even logging to amigaworld.net doeasn't take more than 87 seconds, or is this just a coinside?. Hope this helps.
No, probably not. A lot of the background images are repeated tiles - on OS4 I use layers.library's backfill functions to tile plot very efficiently. On OS3 I can't do that, so it's probably my old slow (and seemingly broken) code. That would certainly explain some of the performance problems. I don't know why it fixes the rendering, but that's interesting useful information, thanks.
There is no config under the about, there is a credits and license.
I mean, browse directly to "about:config"
You have hidden that donate button very well in your home page.
It's only there because some people were asking, and it's on the most relevant page!
If you donate then it's for work already done, not future progress. But, actually, the feedback is more motivating and useful than donations.