Requires the library mod Collective.
Faster Crouching makes the crouching/sneaking speed of players to be the same speed as when walking normally. Any speed potion effects will also increase the max speed of crouching, equal to the normal max speed. You'll be able to sprint while crouching as well.
The effect in action:
------------------
You may freely use this mod in any modpack, as long as the download remains hosted within the CurseForge ecosystem.
Serilum.com contains an overview and more information on all mods available.
Comments are disabled as I'm unable to keep track of all the separate pages on each mod.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!