@MichaelDaniels either of those speeds are too low to stream succesfully. Your new hub does not connect in the same way as the older black hubs do. They are not compatzble with the old Sky Q mesh wifi system so only the main Q box can connect to the new hub using the 2.4GHz wifi band. All Sky Q minis and any old boosters connect to a closed 5GHz signal from the main Q box.
Several possibilities for you loss of speed the first is interference the 2.4GHz band can only really carry 3 or 4 different networks before you start to get interference which will recuce sppedds and cause buffering due to packet loss. Depending on how close you are to your neighbours that is pretty common issue. The Sky Max hub is pretty clever and it should find tge best channel itself but you can try restarting it to give it a kick but expect to have to do thst pretty regularly.
If the issue is on a Sky mini tge issue is a weak signal from the main Sky box and you may require a Sky Q booster or at least a check by one of their engineers but the root of the.problem is Sky Q is an okd design and simply not compstable with newer equipment.
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65inch Sky Glass, 3 Sky Streaming Pucks, Sky Ultrafast + and Sky SR213(white Wifi Max hub) main Wifi from 3 TP-Link Deco M4 units in access point mode
