Are you new to pump therapy? I think you need to call your diabetes centre.
I'm not sure but the 5 hours you mention is not the bolus speed but how long a bolus remains having an impact on the blood sugars.
that would be correct..
In profiles the (timed settings) basal is how much you are given per hour
In profiles (pump settings) there is a max basal setting this is as it says the max you will be given per hour
HOWEVER… Regular basal does NOT show as IOB, only basal increases to treat high bg and boluses show as IOB. So if you have too iob showing one of your other settings us not correct Ie you are getting too much correction
One thing to remember the iob is calculated over 5 hours, so it is possible to have the pump show some iob, and for you to have actually use it
Personally I don't worry about the pump show iob, unless I'm having hypo issues
And you can call your team, or air liquide for support