Engine code

[Hazcat]

I have a code P000A and it’s causing like a limp mode, really struggles to get to 70, won’t rev properlly etc. I’ve been to the mechanic and they said an oil change should fix it but it hasn’t and now it seems to be a throw stuff at it and see what works (talking about a sensor at the front of the camshaft)

Would anyone have an idea of what we need to be looking at I just don’t want to be throwing thousands of dollars at something if someone knows the fix

P000A
“A” camshaft position slow response Bank 1

Thanks in advance to anyone
Ps it’s a 2014 tig 132tsi stage 1 APR tuned