When you travel with a US sim all your traffic is routed back to the US first so it’s quite slow, but it is uncensored. Another trick is you can buy prepaid sim

When you travel with a US sim all your traffic is routed back to the US first so it’s quite slow, but it is uncensored. Another trick is you can buy prepaid sims in Hong Kong which use the exact same networks but are uncensored so the internet is fast and uncensored. But this route is expensive.