True Answer Re Timeouts

I've been using text files for Tab-Delimited/ADO/ASP sites so that users can
update and display their products lists through my system with relative
ease.

Only problem is that for the last few months or so, this system has been
generating loads of timeouts. ISP has said that I should be looking to
upgrade my system, as it is the mechanics of it that are creaking under the
strain. My queries are:

a) Which REALLY performs better OLEDB DSN-less or ODBC DSN-less?

b) If I convert the system to use 1 Access DB rather than 50-odd
tab-delimited text files will this REALLY perform better in relation to
timeouts?

To give you some idea of the problems, the site can viewed by going to
www.bardwells.co.uk and clicking the Product List link.

I just can't understand it because the pages on the whole are very lean and
zippy (esp. ADSL), but its these exact same Broadband users who seem to have
more trouble with timeouts than dial-up ones.