Bug#493183: kgoldrunner: takes excessive CPU time
When the number of wraiths is increased the amount of CPU time taken for
the game increases dramatically.
On a P4-1.5GHz with 15 wraiths about 50% of the machine's CPU time is
used. With 20 wraiths about 80% is used, and with 30 100% CPU time is
used and the game runs noticably slower.
Levels such as the mongolian horde run quite slowly.
Even on an Opteron 1212 (2GHz, 64bit) I've found kgoldrunner to perform
poorly on levels with moderate numbers of wraiths.