The design does not affect the play too much, possibly at the 11th hole and at the 18th (bridge photos, etc); however the additional "rough" on several front nine holes, and to the left of 16 and 17 seem to be the main culprits, according to my mates in the Thursday Club. Playing all year around 8:30 am they average less than 4 hours, get annoyed when longer than 3.5 hrs.
The "design" promotes danger more than slow play - in 3 years I had several balls fly within inches of my body without injury, other than speeding my pulse for several minutes. However, there's no better place to gawf your ball, not in this world anyway!