I noticed that when I operate the gimbal up or down it’s not a smooth motion. It acts like there’s sticky points if that makes sense.

Might be some dust or debris in the gimbal itself. I have seen others talk about taking a can of compressed air to the gimbal whilst moving it around (powered off of course) to remove obstructions. Also, make sure that you are observing this jerky motion while doing full gimbal travel with the gimbal control (i.e. make sure you're not causing the jerkiness yourself). If that doesn't help, might post a video here to show us what you're seeing.

I do see my gimbal move not smooth when testing on landing condition. Need to test video in flight to see is it smooth or not.

You can change the smoothness in the settings. Also try out the cinematic mode.

I already set the smooth. Looks like gimbal slow down in a position when pointing up or down. I will take some video in weekend to confirm.