Just looking at my ER7212PC and it's a 1.0 What are the differences to the 1.2

I am looking to make use of online service such as NextDNS or control D. I appears from my ER7212PC v1 1.1.1 Build 20230901 Rel.55651 that there is no where to configure this DNS is this correct?

I have a couple of EAP615 connected to my network. Any devices that are connected thru the ethernet socket on them have incredibly slow download speed. I am using both a Windows 10 and Window 11 lapto

I am struggling to migrate my site that is hosted on an OC200 to my new ER7212Pc. Seems the omada controller version is different on both. I can not find an option upgrade the ER7212 to the same. Any