terrible salt coverage in Herrliberg?

So i recently started working in Herrliberg and noticed that my data is performing awfully. I have 0.16 mbps download speed and only 4.2mbps upload speed. I checked the coverage network but i was appearently still being covered by the 5G radius.

I can’t do anything, constantly loose my 5G connection and it defaults to 3G. What’s up with that? All my co-workers that use swisscom or sunrise have perfect connection, even when they’re below ground whereas i struggle to get one bar just outside.

Could anyone in Herrliberg that also uses salt share some insight on their expiriences?