Surfing the internet on an Amiga sucks. Sorry to say it but its true. My main Amiga is an A4000T with a Cyberstorm 68060, 128Mb Fast ram, SCSI HD and Picasso IV and despite all this, surfing the web is rubbish.
More than the Amiga being the problem i think its the browser. Both A-Web and I-Browse suck! You can't even go on Facebook with them because they are so outdated.
Somebody should port Firefox.