If you have decided to place all AutoCAD items in a central location and link each machine across the network to those locations by adding them to the “Support File Search Path” then this is for you!
I was experiencing really slow mtext editing, slow loading of options dialog and slow loading of the hatch editor. I did some digging and found very few solutions. Only one that caught my eye where the response was “Maybe that’s part of the problem. ” I thought, lets test that. I removed the network paths from the support path and voila! Everything is blisteringly fast again.
Next step, work out why the network bit is slow!