I'm probably wrong on this point as I have never seen a performance difference, but cracking WPA1 should be faster.
As far as switching is concerned, you definitely should as WPA2-AES is required to get 802.11n speeds on most hardware. AES also uses less resources on most hardware since it's easy to implement AES in hardware(ASIC).
edit: just tested, same speed.
As far as switching is concerned, you definitely should as WPA2-AES is required to get 802.11n speeds on most hardware. AES also uses less resources on most hardware since it's easy to implement AES in hardware(ASIC).
edit: just tested, same speed.