When you adjust the 4x scope ADS/Gyroscope ADS Sensitivity (depends on whether you are using your finger or a gyroscope to control the recoil), it will change the sensitivity of adjusting the aim while shooting. It doesn't change how the gun itself behaves. Every gun has vertical recoil, which you can control with your finger/gyroscope, and horizontal recoil, which you cannot control that way. Both horizontal and vertical recoil can vary depending on the attachments you are using, including the scope.
The recording you shared looks normal to me. Please confirm whether adjusting the 4x scope setting affects the sensitivity of adjusting the recoil while shooting.