Change the pir out for xps insulation in the door area, look for one with a high compression something like xps 500.
you have a cavity build up so will be a bit different to mine, but basically leave the inner blockwork low, fill your cavity with whatever you are doing and set the xps down solid onto this lower structure, doors sit on that, with whatever dpc you deam necessary
don’t use 150 mm insulation, get 75mm and do two layers. Easier to cut and you can stagger the joints.