However, same source code assembled with DC 10.11 runs normally fast.
All instructions run slower; eg.
with 10.72: LD a,(var1) uses .42uS time
with 10.11: LD a,(var1) uses .21uS time
with 10.72: LD DE,19 uses .30uS time
with 10.11: LD DE,19 uses .10uS time
CPU clock doubler shows enabled according to register GCDR
The peripheral CLK is running at 59MHz (normal apeed)
Thanks for any help.