Feed rate on Z axis from toolhead tab in Mainsail locks up lead screws

Hello, ever since I moved to ROS 2.1 on my VCore3.1 I have had the issue were if I move the z axis via the Toolhead say down 150MM, the acceleration is such that the leadscrews lock up and start to grind. I have no problem if I enter a feed rate of about F500 or Even higher. But I have to do that manually in the console. Does anyone have any suggestions? Is there a config somewhere that I can change the default feed rate for the z axis? Is there a mechanical issue? Any help would be appreciated. Thank you in advance.

Solution

So, I figured it out. You just need to go into the interface setting>controls> and change the Z axis movemnet speed to like 10MM/s. that gives you a F600 when you use the toolhead. I think I still have a mechanical issue with the back z lead-screw, which I will replace next time z I have to take it apart.