Freeze tag hook speed?

[shebang]

I've been trying to set up a Freeze tag rail server with wall grapple and I've almost got it working except for 1 thing:

when I set hook_speed higher than 2500 the grapple starts going wacky, I lose control of my ability to aim it. At 2500 it feels to slow for professional gameplay, and I know I used to play on servers where I could instantly zip around.

Is there some sort of trick to getting this to work right? Will updating the server client fix it? I imagine there's something specifically wrong with the freeze mod, but I can't find any versions higher than 1.89 anywhere? I even went through the source code a bit and I cannot for the life of me figure out why this is happening.

Getting frustrated. I just want it to feel like it used to lol