Altium running slow? Here is one possible reason

Recently,I’ve been working on a design in Altium. Nothing that unusual or complicated, so I didn’t expect any troubles. I went through the standard steps of importing a dxf outline, creating board shape and placing parts.  And then halfway through routing I started getting some very annoying slowdowns. You’d touch a net to start routing a trace from it and cursor changes into a spinning “wait” circle and sits there for 30 seconds or more. In some cases I had  to stop Altium process and reopen it again. Not good when you have many nets to touch! Continue reading