If SecureAPlus Premium scans all the files concerned each time you run a project, maybe it can impact. What do you mean by "takes extra long to parse" ? How many extra time in comparison with testing the same without SecureAPlus Premium activated ?
I use NetBeans IDE 8.1 and Kaspersky Total Security : each time I run a project, I don't always see the KTS icon reacting (scan on files). "Intelligent analyse" is set.
It seems to scan some files especially when I run the IDE the first time for a particular session.
"SecureAPlus is the antivirus software that uses 12 Antiviruses at a time to automatically scan your computer for the best malware and virus protection. It has higher detection rates without slowing your computer down with regular online scans by using cloud antivirus engines to provide the most accurate diagnosis when a threat is detected.
This effectively gives you a second opinion using 12 different antivirus engines without the extra hassle on you and your PC. It’s about time security did all its heavy lifting in the cloud."
Each time you run (debug, modify, etc...) your java project, I hope it doesn't send all the java files concerned on their cloud to scan them