[throw4738]

Try to downgrade to 3G, it is in phone setting, you should get 3 Mbps easily.

[kiwijamo]

Many carriers are now reducing radio bandiwdth available to 3G due to reallocating spectrum to 4G (or even 5G) so this isn't a viable long term plan.

[lxgr]

3G is much slower than 4G on my network. Most 3G networks in my country are scheduled to be switched off in the very near future.