How to set a transition form long animation clip

I’m working on unity Survival Shooter tutorial and i can see there is a very long delay until my walking animation starts playing when i move my character around.

Looking at my character animation controller, the transition between Idle state and walking state is defined with an IsWalking parameter, but whenever this parameter is set to true the walking animation still need to wait for the idle animation to end which takes about 12 seconds.

So it seems that even when the transition conditions are met, we still need to wait until the end of current animation clip, i suppose i could solve it by using only very short clips, but really i would like to know it i can set my transitions to happen instantly without waiting for current clip to end

This is what the Exit Time controls. If a transition has an Exit Time set, then the animation will play as long as the Exit Time before actually transitioning to the next animation state. If you have a gun firing animation, you would want it to completely play till the end without transition into idle or running or whatever, no matter the circumstances, In that case, you would use an exit time. Non-looping clips are a commonly used with Exit Times. If you have a looping clip like idle, walking, running and such, you can disable the Exit Time or set it’s value lower.