True, so it must be the gfx/text performance. Pages build up noticably quicker on JR-Comm, at least on my stock OCS A500 with 1 MB chip RAM. I tested both programs with a 19.2 kbps connection.
There is a 3.0 version, 3.06 update and free keyfile, yes.
are you running them both in the same number of color planes? ie jr-comm running in mono or 4 color vs ncomm running in default 8 color?
I run on my minimig 1.1 which has much better chipram speed so I don't notice any difference at all.