@jay_s_uk thanks a lot!
only 60mm/s? First time I tried with 0.6 nozzle, layer height 0.36 and base cura speed 140mm/s.
Do you have some recommendation? change only nozzle or whole hotend? if hotend what you recommended? dragon HF or rapido or volcano or something different?

@jay_s_uk I have this https://trianglelab.net/products/dde-direct-drive-extruder?VariantsId=10109 V6 hotend
So I am on limit of hotend? And if I want print with higher speed I need new high flow hotend?

Hi,
I have ender 3 v2, duet 2 board, direct drive extruder.
I calibrated extruder for feedrate 6mm/s (G1 E100 F60) calculate e step value and printer works fine.

I tried print some model on higher speed with 0.6 nozzle and printed model looks underextruded. So I tried measure 100mm and extrude on higher speed 60mm/s (G1 E100 F600) and missing 37mm! I tried it more time and result was always same, missing 37mm filament to extrude.
Material was PLA, temperature 220. I tried 30mm/s feedrate (G1 E100 F300) and missing 7-8mm filament to extrude 100mm.

My question is, how setup extruder to working on slow and also high speed? where could be problem? Thanks for any help\

My config.g driver setup:

; Drives
M569 P0 S0                                         ; physical drive 0 goes backwards
M569 P1 S0                                         ; physical drive 1 goes backwards
M569 P2 S1                                         ; physical drive 2 goes forwards
M569 P3 S0                                         ; physical drive 3 goes backwards
M569 P4 S1                                         ; physical drive 4 goes forwards
M584 X0 Y1 Z4 E3                                   ; set drive mapping
M350 X16 Y16 Z16 E16 I1                            ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E426                     ; set steps per mm
M566 X600.00 Y600.00 Z60.00 E300.00                ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z600.00 E6000.00            ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z120.00 E1000.00              ; set accelerations (mm/s^2)
M906 X800 Y800 Z1000 E1000 I10                      ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                            ; Set idle timeout