GetTickCount()'s granularity represents 15% of the time we want to
mesure, making it hard to not get failures. So use NtQuerySystemTime()
instead since we already depend on it.
Narrow down the acceptable range again.
Signed-off-by: Francois Gouget <fgouget@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>