Have Just made a search again and find this Nissan Consult
Here are a few links could try installing them one by one and see if there are any options to disable a limiter by scrolling through the menus
would be cautious of having that be disabled if it is possible since it may cause unknown damage.
The bottom link Delphi may not be original software and could be a copy (Thus may contain spyware or virus).
If this is not allowed I can remove the link (ASAP).
I am listing it anyway to show the name of the program as this was the first link in my search for Delphi.
Warnings aside it would be okay to preview for what I have explained. *provided you are aware of and are able to deal with. Anything that may be contained in the download that are on that page*
Second thoughts to provide such a link may be against the rules so I have removed the link in advance...
Another thing that may be possible unsure of this would be to upgrade the ecu to something that is more mod able?
Nissan Consult (There seems to be info but multiple dead links in these posts)
https://www.nissanforums.com/tools/125956-nissan-consult-softwares.html
Nds II Diagnostic Software (This seems to be a simple diagnostic tool and probably does not unlock or disable anything)
https://home.exetel.com.au/nds/NDSII/index.php?content=supportedcars
Diagnostic Software Delphi & Autocom Cars / Trucks (May be worth looking at to see what options are available)