Confirmed on Windows XP, Inkscape trunk revision 12713. Not only the CPU usage is high, but memory usage also raise quickly (up to 1 GiB after some editing/zooming actions).
@shymoon - Note that you file is really big (13,5 MiB). Hiding some layers (Trees, Ground cover, Shrubs) seems to improve text editing.
Confirmed on Windows XP, Inkscape trunk revision 12713. Not only the CPU usage is high, but memory usage also raise quickly (up to 1 GiB after some editing/zooming actions).
@shymoon - Note that you file is really big (13,5 MiB). Hiding some layers (Trees, Ground cover, Shrubs) seems to improve text editing.