Thanks for the reference, looks like a ~100 USD phone. Which I would consider the lower end for NA market, but it's all relative, worldwide as you say might be mid-market.
Yes, changing the animation rate, can save a lot of CPU perf per frame for 3D Object. For performance testing, if you will also have other moving objects like Sprites, check what the performance is like when all objects are animating how you expect. The more C3 draws, the more we need to draw the 3D Object also.
I have also added an optimization that reduces animation CPU perf when the object is off-screen (the object is also not drawn when off-screen already.)