So the original problem was that when I compiled a webservice, in the output box, before loading the webservice in a browser, it paused for 2 minutes at
Starting web application: I20 AVS

I have now got that down to 4 seconds and I am much happier.

On this dev machine I have five webservices, one using the old native database and four using my newer SQL database.
If I change the four to be using the native database instead of MS-SQL the delay disappears.
If I only have the workspace I am compiling in to the SQL database the delay is a manageable 4 seconds.
Morethan one SQL database and the delay goes up at an increasing rate.

I determined that the source of the problem is in Stopping the Service. (Win10 - Service - Dataflex 19.1 Web Application Server)
I did way too many timing tests starting and stopping the DF 19.1 webapp server from "Service" until I tripped over the solution.
Looks like I will keep the native database around for a while longer.

Thanks to everyone for their suggestions that kept me going on this issue.
RChi