Your first problem is your live-z needs adjustment, you should not be able to see individual strands of the brim. Look for the 'life z my way' thread here on the forum and use that to calibrate first layer.
Retraction of 2.2 and speed of 50mm/s seems a bit on the high side. Try 0.8 and 30.
Have you done an extrusion calibration? There are two required, one for the accuracy of the feed length and one to check the agreement between set wall thickness and actual printed wall.
Once those are done, then over extrusion can be discounted as a reason for the layer shifts and if they still exist you can look for mechanical causes. Common causes include loose belt slipping on the toothed pulley, loose grub screw on a motor pulley, grub screw not tightened on the flat face of the motor shaft, print debris between the belt and pulley, cable bundle catching on the frame or on another cable.
Hope this helps you solve the problem and get back to printing.
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