Arc welder is not needed for Klipper. On the contrary it might rather introduce unwanted effects due to precision loss and bugs in arc-welder.
What kind of printer is this? Your acceleration of 750 seems terrible low even for some Chinesium printer.
Edit:
nozzle_diameter = 0.04
filament_diameter = 1.750
max_extrude_cross_section = 30
max_extrude_only_distance = 200
nozzle_diameter seems a little off and the max_extrude_* should not be needed on a properly configured printer.