I'm trying to figure out an answer to your question but the only thing that I can think of right now is that you may possibly do not truly understand the functionality of wait or scheduling and how it really works "behind the scenes." Why wait is used and when to use it is important for giving the engine time to store local variables, pointers and allow the engine to schedule functions before returning back to the action after designated frames or time and having 50 entity's on the screen with wait doesnt mean you'll wait 50 seconds for the engine to make up its mind. You can overload time without causing any problems because different waits can be run parallel. Why you would think that wait is a bad thing just makes me think that maybe you should do a little bit more reading up on it or work with it more, maybe you just dont understand its use.

I didnt write this as an argument or an attempt to belittle you but maybe you will look at it closer and try to really understand it as a means of helping yourself.

Why do you feel that using var is bad? Just dont understand your thinking.