I'm assuming standard ECU, injectors, pump, AFM, boost.
You should be putting 98RON fuel in. Otherwise, the ECU retards the engine because it'll ping.
What spark plugs did you put in? Gap? It could be hitting R&R (too much boost), could be bad AFM (replace/solder fix AFM), could be bad fuel pump. First thing I'd do is drain the fuel tank and put 98 RON fuel in.