The video shows normal behaviour. It's well below 0 (atmospheric pressure) which indicates good engine vacuum i.e. the compression is good.
You hit 143 grams/sec MAF at 5160rpm and 1.3 bar. Pretty low as that equates to 177bhp using the MAF divided by 0.8 calculation. At that boost and rpm, the MAF should be around 200 on a mapped ED30.
It's not a happy bunny. Quite a lot of misfires at idle, which is classic injector(s) assuming the plugs and coils are OK. I reckon it's the turbo. Either it's tired, the wastegate is in a bad mood or there's a boost leak somewhere.