Your figures equate to 13.45 ft lb .. so you are over the UK limit and need to turn the rifle down a tad.
If you added any preload then try removing it. If not the removing a coil may well do the job.
There are many energy calculators on the web if your chono does not give that reading. All you need are pellet wt in grains and muzzle velocity.
The actual equation used is:
E in ftlb = pellet wt in grains x velocity in fps x velocity in fps all divided by 450240
Some equations use a divider of 450435, it all depends on which gravitational constant is used. Convention for air guns seems to be 450240.
Cheers, Phil