If you want a hardware upgrade it's actually reasonably inexpensive to build something direct drive (which is how the real sub-30kg ones work). This gives you many advantages over the plastic gear type including a much faster response time and more accurate positioning.
Look for "gimbal motors", basically a large skinny pancake brushless motor. Combine those with a storm32, simplebgc or odrive and a magnetic encoder. A 3D printer will help.
You can also have a look at low cost suppliers of cheap UAV stuff if you want something fully integrated for you. A basic Gremsy, Viewpro or Siyi isn't that much more than your Amazon thing. Various software bugs but they can be worked around. The DJI units can sometimes be had used and some of the protocols have been RE'd already.
If you want a hardware upgrade it's actually reasonably inexpensive to build something direct drive (which is how the real sub-30kg ones work). This gives you many advantages over the plastic gear type including a much faster response time and more accurate positioning.
Look for "gimbal motors", basically a large skinny pancake brushless motor. Combine those with a storm32, simplebgc or odrive and a magnetic encoder. A 3D printer will help.
You can also have a look at low cost suppliers of cheap UAV stuff if you want something fully integrated for you. A basic Gremsy, Viewpro or Siyi isn't that much more than your Amazon thing. Various software bugs but they can be worked around. The DJI units can sometimes be had used and some of the protocols have been RE'd already.