Events

So my game has lots of if conditions and it has gotten to a point where I have to optimize for better performance. 400 npcs walking around, constatly checking if they have a line of sight of enemy and all that stuff. So my question is about the events. if one "if" is negative, does it continue checking the rest ? ex. 5 ifs and the first one doesnt meet the requirements, does the game check the remaining ones or just goes to the next event ?

I believe if you have several conditions in one event and the first condition is false, others are not evaluated. (Unless it's an OR-block)

But if you have several conditions in one expression, for example Enemy.Type="zombie" & Function.Call("GetEnemyHealth")>0 , the function will still be called and evaluated even if the enemy is not zombie.