Is low ping/low jitter international data roaming possible at all?

I tried Skyping on this e-Sim and it was unusable. Picture was low quality and the other side couldn't hear me most of the time. Not really surprising with latency this high.

Upon closer inspection I found that my IP is from Amazon AWS data center is Singapore which where provider is located. So it seems all my data packets are making a round trip halfway across the world.

I understand why this may be necessary - they need to track my data usage and traffic has to travel through their servers. But does it mean latency ALWAYS has to be this high? Can this be implemented in a different way so that packets don't have to travel across the world? I mean in this case since plan was geared towards USA they could've had servers in Amazon US data centers?

I never used international roaming on any major brands (i.e. AT&T or T-Mobile) and don't know if it also as bad. If someone tried that - can you report what you experienced? Does it suffer from the same high latency? Or do they have some kind of more advanced carrier-level roaming implementation?