SEE LATEST POST FOR MORE ADVANCED VERSION!
This patch sets a modifier for Rate.AttackSpeed to speed up base attacks globally on the server. This is my first contribution so forgive any mistakes.
In WorldServer.conf add the following:
Rate.AttackSpeed = (float 1 = normal, 2 = 200% faster etc.)
https://gist.github.com/Langerz82/cef1a47f3df94d956787d1ec08744d28
[ATTACH]2286._xfImport[/ATTACH]
I have created a more extensive patch which include the rates of casting and cooldowns.
Rate.AttackSpeed = (float 1 = normal, 2 = 200% faster etc.)
Rate.CooldownSpeed = (float 1 = normal, 2 = 200% faster etc.)
Rate.CastingSpeed = (float 1 = normal, 2 = 200% faster etc.)
Bear in mind the casting and cooldown speeds are client-sided as well so to make them faster than the default a custom MPQ removing the cast and cooldown speed need to be applied. Can I link to a patch here admin?
Anyway here is the patch to apply. Apology any mistakes this is in alpha and needs further testing with all spell variants.
https://gist.github.com/Langerz82/f4051dd992a368001e168bb410f430b9
[ATTACH]2287._xfImport[/ATTACH]
Would love to see this updated to work with latest master 7.3.2 please 
I think it has a bug or two. Ranged attacks don’t produce a cooldown packet message. When I get time I will update the code, atm I’m working on the core.
Kind regards,