Modded Creality CR10 print quality issues

[Kporabik]

Hey Not long ago i have bought my first fdm printer. Creality CR10. It was someones unfinished project. It took me roughly 3 weeks to bring it to life with first fully succesful print.
Mod list:
Mobo: BTT SKR 1.4 turbo
Drivers: BTT TMC 2130
Display: BTT TFT35 E3.01
PSU: 24V
Hotend: Volcano V6 + 0.6mm nozzle
Part cooler: single 5015 with my custom modeled shroud (see pictures)
Bltouch
BMG dual gear extruder
PEI Bed
Steppers: 17HE15-1504S
AIO mod
Hard bed springs
Better bowen tube
Squash ball feets
Running Marlin 2.1.2.1

Now the problem. Even tho the printer prints it is not the best quality. (see picture/just the bottom part of it on top i was trying fuzzy skin)
On the bottom part you can see some lines and pattern occuring on flat surface which is super annoying becouse i have no idea where to start troubleshooting.
Material PLA (around 1 month old never dried and never stored in dry box)Could it be that the printer is standing on a cheap ikea table?

[Bikeracer2020]

Possibly under extrusion with the 0.6 nozzle

[Kporabik]

How so if i have done the flow test and for every 10cm requested it pulls 10cm dead

[Bikeracer2020]

How so if i have done the flow test and for every 10cm requested it pulls 10cm dead

That means your 'e' steps are right.

In your slicer there should be a flow ratio setting or extrusion multiplier. In Orca slicer there is a flow ratio calibration file to print and instructions on how to correct it.
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