Update from BBL on slower print times with the new E3D hotend

For context i bought the new E3D hotend for the x1c from BBL and downloaded and installed the profiles suggested by BBL.

Print times for average sized prints of upto 8 hours or so were sliced and always slower with the new HF nozel then the stock 0.4mm

After days of back and forth bambu has told me the new HF will be faster if I print a large 150mm cube.

So i cant say $160aud was money well spent

Ive added a screen shot from BBL chat for context.