Just checked using my phone -118 dBM 26asu. Speed check shows 20Mbps download
Smaller numbers are better so your 85 looks good
A proper 4G router sited in a favourable place will do much better. My phone in the office is getting 20 Mbps Before we got FTTP we used a 4G service, router close to where I am now, without an external antenna, speed was consistently about 50Mbps
The 4G mast is about 1.5 miles away with an almost clear line of sightView attachment 959815
@sandy2210 - how are you getting on with your setup? I have an external antenna with mine and it has been very good so far. No drop outs & no faffing around with finding the best location for the router.
That’s the external antenna to the left of the Sky dish.