I wrote a mini guide here that covers fasttrack, MSS reduction and killswitch: http://forum.mikrotik.com/t/nordvpn-ipsec-ikev2-killswitch-for-ros6/144817/1
I wrote a mini guide here that covers fasttrack, MSS reduction and killswitch: http://forum.mikrotik.com/t/nordvpn-ipsec-ikev2-killswitch-for-ros6/144817/1