Simple answer: yes, you are being impatient. :wink:
Different zoom levels are updated at different times - usually the closer zooms are updated more often than the zoomed out views.
For the Osmarender layer, you can usually speed up things by going to http://www.informationfreeway.org/ and requesting a rerender (zoom in to level 12, and press i ).

Also, it could be you are looked at a cached version of the tiles. Doing a shift+refresh in your browser might help.