Hello everyone I am trying to simulate an Impeller of Vaccum Cleaner in a Flow Simulation. According to the specs of the manufacturer, it should produce a vacuum of 3 psi at 2700 rpm but I am only able to get the vacuum pressure up to 0.5 psi even if I increase the rpm to 100,000 the vacuum pressure does not increase beyond 0.7 psi. I don't know where I am going wrong, can anyone help?

Here's the setup wall — ImgBB (ibb.co)