Data speeds by my home

It's been very bad data speeds at my home.... Around 114 Ave and 140th street in Surreybc since May 2025 back before then I was getting 400-600mbps download on my galaxy 24 ultra and Telus zte home 5G FWA Device.... Now it on 5G and LTE averaging 100mbps download.... Why in and going to be two years no service improvements!? Attached is a screenshot from my home....they said by Sept 4th there will be improvements but my thinking it won't happen!