First, my saves has been deleting all by themselves and I can have really small number of them, how to solve this?

Second, is it possible to set jump on WheelUp WheelDown and Space at the same time? If it is, what's the command for this?

thanks in advance.

I have problems with long loading times in game, which are much longer recently and I don't know why it happens. In this short video I showed how it all looks like. If anyone know how to help me, I'll be thankful.

My computer can't make this, because he is strong enough.