It's slow, but you might make that at a push if you leg it on the final whistle. Hard for me to judge as never been to a Spurs game there only England games when 90% leave with 15 minutes to go. May be the same at Spurs though.
I may be wrong but I think they are all lower tier which in my experience of Wembley is far superior to the Upper Tier or Club Wembley provided you're not too low down. Row 20 backwards is about perfect in the lower tier.