Most computer application will provide you minimum requirement. The minimum requirement does not mean it will run well, it just works. For example Windows 10, minimum requirement is 4GB for memory but most computer computers today is running 8GB.
If you have purchased a computer, in the last year or two, then you should be fine since it will have the minimum requirement for AutoCAD. If you install on the existing machine you have it runs slow, just add some memory to it and it will be a little faster