Need some serious dev/modder reading feedback etc.
Actually it's :
Agi : Fast Attack Speed, Fast run, Heavy Armoured, Medium Damage.
Str : Slow Attack Speed, Slow Run, Heavy Armoured, Great Damage.
There's something Wrong non ?
Another fix could be make athletic depends of strength. Let footwork skills deals with spam. The criteria wich determine your sprint speed is your amount of leg muscles not your agility imho.