I don’t think you should give up on your 127 go to just yet. Have you mounted the telescope to the left of the fork?. Are you leveling the mount before you start?. Have you set the tracking speed to sidereal?. When looking through the eyepiece have you reduced the speed to 2-4 depending how magnified you are. I take it you aren’t going through the alignment process as if you did the tracking would be bang on (for visual). I have a 127 Maksutov go to and a 8” dobsonian with starsense fitted plus a 120mm refractor on an EQ5 pro go to mount. Whilst I enjoy star hopping my way to a target sometimes, I also enjoy accurate tracking once I have found it.