Rogues (nerf?) suggestion

[xnorwayx]

Hello everyone!
Every day I see forum threads about rogues are op. But why this class is over powered? Deadly crit and high damage, little cooldown on skills. Wait a second... Little cooldown? 2 seconds cooldown on aimed shot. It's just too easy to play as rogue. So my suggestion is :
Cooldown from 2 seconds to 3-4 seconds. Then rogues will not kill everything on their way so easy. Maybe also nerd 250% crit on aimed to 200%? Then bad geared rogues will stand maybe little, but a chanse against good geared rogues. What do you guys think? Please leave feedback down in replies. Thanks.
P.S.: Main suggestion is about cooldown. Secondary suggestion is about crit.
+
Nerf critical on aimed but add+5% dmg in pvp room?