Hi HPB,
Sorry for the delay. I might have overlooked the email notification of your latest inquiry on the Hyper-Optimization. Yes, you are right, there seems to be no specific explanation on this parameter in the user guide. Sorry for the inconvenience.
For your information, the Hyper-Optimization parameter is for the S10 Hyper register optimization usage. The following is the description from the Q18.1Pro S10 HSRS IP parameter editor -> Details for your reference:
"Insertion of register stages to optimise for Stratix 10 and later architecture"
Please let me know if there is any concern. Thank you.