I'm afraid giffgaff doesn't compare to EE at all for Internet speeds. If the coverage checker says everything if fine, then there is nothing you can do I'm afraid. Internet speed and lack of connection is probably the biggest complaint here in the forum.
gg has a limited bandwith: the more people use it, the slower it is for each individual user ☹
The he issue is resolved now.
had to turn my phone off and on a few times and it fixed itself.
The issue is resolved now.