I'm sorry if I'm mistaken, but it seems to me you'd like to alter your own tickrate? Tickrate really only applies to servers. It basically determines how many times a second the server sends and receives information.
What I guess you could do on your own part is increase FPS, but I'm pretty sure your FPS is already high enough so a couple more would probably not do much (if any) difference.
If you were in fact talking about servers, then it's somewhere in their .ini files, but I really don't know which one, you can try searching in them.
As for net speed
NetSpeed xxxx - Sets netspeed to different setting
But I do believe there are certain minimum and maximum values that this can be set to (according to the CVARs), but I really don't know those values.