Speed camera warning at 70mph

[IGH- Ioniq]

When I have the speed camera warning switched on it plays a warning if I go 1+ mph over the speed limit in a 30, 40, 50 or 60 mph speed limit (31, 41, 51, 61mph), however, if I am in a 70mph speed limit the warning sound bongs if I am doing 70mph (including when the Level 2 Driver assistance is active, which maintains the car at the motorway displayed speed limit).
Is there any way to set the 70mph warning to only operate if the car is doing 71+ mph?

[RACIONIC5]

I am unable to set speed limit control on Dec21 ionic5 premium tried instructions in owner manual and on car dashboard but cannot get it to function even when it shows speed limit on dashboard help please