ABS-GF second Layer

Hi all,
First print with P1s and Eryone ABS-GF filament.
Why do you think the first layer (which isn’t visible here) is perfect, while the second layer is so wavy? Then, from the third layer onward, it improves, and in the end, the part is beautiful from every side.

part dimension 127x127mm
nozzle 270
bed 90
second layer speed 80
part fan off
Before starting printing, the P1s’s chamber is at about 45 degrees