On big, expensive machines, the controls are often tailored to the machine. Where a hobby control like UCCNC is a general purpose control, used by many different types of machines. So what you end up with is something that works well on most machines, but could always be a bit better. CNC Drive is planning on working on a new trajectory planner soon, with S Curve acceleration, which will be very nice for machines capable of high speeds.

My day job is running big Italian routers, in the cabinet industry. The controls on these machines are tailered to both the machine and application. So while I can easily cut cabinet parts at 1500ipm, any type of 3D work is a real struggle for the machine we have.