I've been getting 10/10 in about 3-4 minutes on those questions, but it depends on which questions pop up and whether my brain goes into a panic!
I don't know if anyone else has been having trouble accessing the online tests which should be done before stage one? I have been for the past few days and I finally got through to both shlgroup and NATS today and they said that if you have been having trouble then tell the assessor on your test day and it would be alright to take the online tests after stage one if you let them know. She said lots of people have been calling in about it. Hopefully it will get fixed soon, but I've been panicking about it and now I'm glad to know I shouldn't be penalized because of it.