Maybe your Filter Size settings have been set too small (Options->Display in the layout editor). If I have it set to the default of 3 (with empty as the style) my small chip layout in 5141 redraws in a fraction of a second. If the filter size is set to 0, then it takes 3-4 seconds. Even with 1 as the filter size it takes less than a second (this means don't attempt to draw anything smaller than a pixel).
This might also be dependent upon you using some kind of X display tool (e.g. VNC, EoD etc) - I was trying this with a local X server on my Linux laptop.