The reason you think that is because you've never been to China. No city's average 5G speeds is as low as 150MB.

https://www.statista.com/statistics/1290784/china-5g-download-speed-by-province/#:~:text=As%20of%20the%20first%20quarter,5G%20infrastructure%20development%20progressed%20rapidly.

The problem is you're using YOUR countries poor excuse for 5G as a reason to say it's inferior.

https://www.lightreading.com/asia/how-real-is-chinas-5g-gap/d/d-id/775634

Maybe if your country didn't ban Huawei, the creators of 5G you wouldn't think it's an inferior product.