I have moved out of the U.S. into South America and one of the nice side-effects of this is that apps from local companies are well optimized here. It's not that there's an extreme level of competency or an optimizing culture. It's simpler.

People have cheaper phones here, so devs are naturally more exposed to low end hardware.

It's been awesome for me! I have a fairphone 4 which isn't top of the line at all anymore but the apps work MUCH better here on average than when I was in the US. Websites also load quicker too for similar reasons.