In the real world, you can't just optimise for the sake of it. You need to get a business case for it. Because it all boils down to revenue vs expenses
You could do the maths on conversion rate increase if that latency disappeared vs the cost of spinning up a dc & running it (including the mess that is localised dbs)
I’m not sure the economics works out for most businesses (I say this as an Australian)
If Shopify app P75 response time is that slow due to that the users are in Australia, then they should get a data center there.
In the real world, you can't just optimise for the sake of it. You need to get a business case for it. Because it all boils down to revenue vs expenses
If the P75 is bad because of Australia that means 25% of their customer base is Australian.
Should they?
You could do the maths on conversion rate increase if that latency disappeared vs the cost of spinning up a dc & running it (including the mess that is localised dbs)
I’m not sure the economics works out for most businesses (I say this as an Australian)
Probably not, because the if-statement in my post is likely false. The Australian user base is likely not high enough.