boost

i seem to not be getting as much boost when car has warmed up what should i be checking

Any more info that's a bit vague ... when you say losing boost how much .... what mods do you have .... does it hesitate etc ???

No mods that i know of when car is just warmed up im hitting 9-10 psi once its been running 25-30 mins only hitting about 7 psi seems like turbo is taking a bit longer to spool up too

Knock sensor, do a fault code check

Just checked with NSD1 no code will code stay on till cleared car has been sitting for a couple hours

Yeah code will be logged and stay logged until you clear it ...

Cold be an air leak. Check your pipes for splits and loose jubilee clips etc. A pressure test and fairy liquid would confirm it.

Interwarmer? (Tmic)
When you say when the engine is warm. Is that just normal running temperature or after you have been boosting or sat In trafic?

Top mount and being warm not anything extreme but a good pull or 2 then basicly normal driving

knock sensor will have no code unless circuit or sensor fault that puts it out of resistance spec (resistor inside knock sensor is to aid ecu in monitoring basic circuit integrity and that controls the fault code 34 status), can be signalling knock and it has no code logic for knock detection or whether it actual knock or false knock so ideally need monitor sensor output or timing .
could be boost leak when joint hot.
could be following playing up when hot  wastegate, actuator, casting cracks, turbo shaft assembly drag .