Have a look here (from J.M. Bruce):

F.1/3 was a prototype, but many authors and books use that column when they publish performance data for the Camel. B2312 was a production model, with a production grade Clerget 9b manufactured by Ruston Proctor. Other production models that were tested had similarly disappointing performance.
And the Dr.1:

The 115mph that it does in AH is a repetition of an error found in many books, unless you think Dr1s were flying around with 145hp Oberusals. And the 110hp Oberusal never produced as much power as the 110hp Le Rhone.
----------------
Edit:
I also find it suspicious that I cannot put the Camel into a spin. The most I can do is to get it to fall flat like a leaf, which is just bizarre. RoF is better in this respect, but there are ways that AH is better, i.e. the Camel's poor rudder authority, and the necessity of left rudder in both left
and right turns.