Depending on the provider - each level 4G, 5G and 5G+ has different throttle limits depending on the carrier and the sub-brands. ie public - cheaper plan, slower speeds etc. Publics 4G is stated for up to 100mbps and their 5G is up to 250 Mbps. the...
Someone had a similar query yesterday. Try try the solution suggested here:https://productioncommunity.publicmobile.ca/t5/Get-Support/Plans/td-p/1152039