First thing to do would be to stop posting this as a bug, because it’s not.
In one of the other threads you’ve made / responded to, I already linked you this…
…which explains that the base CR of the gear items is only a fraction of your overall CR. The other sources are your Warband Tableau, Helliquary level / remains, set item ranks, legendary item ranks, and your legendary gems, i.e. all things which are not linked to drops of set items / legendaries.
The linked thread includes details of why players struggle to catch up…