Printing speed is very very slowly ?????

[ABDELRHMAN SAMIR ABOGABAL]

the speed of printing is very very slowly
this is my config.g
; Configuration file for Duet 0.8.5 (firmware version 1.17)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Sat Dec 24 2016 09:54:13 GMT-0800 (Pacific Standard Time)

;
General preferences
M111 S0 ;
Debugging off
G21 ;
Work in millimetres
G90 ;
Send absolute coordinates…
M83 ;
...but relative extruder moves
M555 P2 ;
Set firmware compatibility to look like RepRapFirmare
M208 X0 Y0 Z0 S1 ;
Set axis minima
M208 X190 Y190 Z190 S0 ; Set axis maxima

;
Endstops
M574 X1 Y1 Z1 S0 ; Define active low and unused microswitches

M558 P1 X0 Y0 Z1 F120 T6000 l1 ; Set Z probe type to switch, the axes for which it is used and the probe + travel speeds

G31 P600 X0 Y0 Z2.5 ;
Drives
M569 P0 S1 ; Drive 0 goes forwards

M569 P1 S1 ;
Drive 1 goes forwards
M569 P2 S1 ;
Drive 2 goes forwards
M569 P3 S1 ;
Drive 3 goes forwards
M92 X80 Y80 Z800 E86 ; Set steps per mm

M566 X15 Y15 Z0.2 E2 ; Set maximum instantaneous speed changes (mm/min)

M203 X100 Y100 Z30 E20 ; Set maximum speeds (mm/min)

M201 X1500 Y1500 Z500 E250 ; Set accelerations (mm/s^2)

M906 X1500 Y1500 Z1500 E1500 ; Set motor currents (mA)

M84 S0 ; Disable motor idle current reduction

;
Heaters
M143 S260 ; Set maximum heater temperature to 260C

M301 H0 S0.17 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)

M305 P0 T100000 B3988 C0 R4700 ; Set thermistor + ADC parameters for heater 0

M301 H1 S0.17 ; Set heater 1 output scale factor to 20%

M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1

;
Tools
M563 P0 D0 H1 ;
Define tool 0
G10 P0 X0 Y0 ;
Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

; Network

M550 Pshisan 3d printer ; Set machine name
M540 PBE:EF:DE:AD:FE:ED ; Set MAC address
M552 P0.0.0.0 S1 ; Enable network and acquire dynamic address via DHCP

; Fans
M106 P0 S0.3 I1 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I1 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Custom settings are not configured

[iDevelo]

Maybe it's this:

M203 X100 Y100 Z30 E20 ; Set maximum speeds (mm/min)

100mm per minute.