Enhanced Portals (Help with a "simple" thing)

[RikoRain]

On the server I play on we used the enhanced portals a lot to move around, and there can be quite a few of us going between areas, especially since we have a localized town area that we can all branch off into areas with. 

 

I notice the "ticks" time on all the portals are 36 seconds. Ive tried to manually tick it down to 5 seconds, but it never sticks. It always resets to 36 after closing the window. Im told theres a way to permanently change it, but I cant figure out how. It is my first "big" modpack and the first that actually uses enhanced portals. 

 

Any help appreciated, is there a way to change the time on the portal staying open permanently? Thanks!