Chosen Solution
5g is way too slow if working at all
@Rick C Try using the phone in safe mode and check if it is any better. It may be that there are apps downloading data in the background, unbeknownst to you and this is slowing things down. Alternatively go to Settings > Connections → Data usage → Data saver and enable it and check performance. Basically the two options above do the same thing i.e. prevent data usage by apps without you knowing about it and also it helps to work out if it is a downloaded app or not that may be causing the problem The difference is that with safe mode, downloaded apps i.e. apps that you downloaded and installed and not ones that were already installed will not be loaded on startup so that they can download in the background. Not all downloaded apps do this of course. Depends on how they’re designed to function by the developer of the app. With data saver it means that the apps are still able to be used but you will get a message about going “online” (or similar) as they won’t work until you do. All you have to do is to enable the data saver feature which usually can also be found in the Notifications shortcuts area and restart the app. You can also set individual permissions for each app as well