Webroot causes program to slow to a crawl

As of yesterday, November 3, 2013, Webroot is slowing one of my applications to a crawl when I attempt to perform certain functions. The program, which I have used for more than eight years, is called Geocaching Swiss Army Knife, or GSAK. More information on the application can be found here:

http://gsak.net

GSAK is essentially a SQL type database program that maintains geocaching information. Normally, an action that updates, for example, 1,000 records takes about 5 seconds on my computer. As of yesterday, this same action on the same data requires more than two minutes. Nothing has changed on the PC, so based on past experience, I strongly suspect that my copy of Webroot SecureAnywhere is being overzealous in scanning for suspicious activity.

I have tried turning off the Realtime Shield and the Rootkit Shield while running the program; no change.

I have tried unchecking "Check files for threats when written or modified." No change.

I have disabled both Basic Heuristics and Webroot Infrared. No change.

The author of the program has strongly recommended that I exclude the folder where GSAK data is stored, which resolves the problem with most anti-virus and security software. However, I see no way to exclude a folder using Webroot, and based on forum threads here it looks as if this is not possible.
 
Is there anything else I can try? This is making me crazy, and the program now runs so slowly it's unusable.
 
--Larry
 
Edited to add that the program is flagged as "Allow" in Webroot's "Block/Allow Files" tab.