Orbi WiFi System

I have just purchased the Orbi AC3000.  I have Internet speeds up 150 – 160 Mb per second at the router.  I have installed the orbi router and satellite correctly.  I have an old house of 2009 ft.².  I am getting reasonable coverage tho not as good as advertised.

I am getting very good Wi-Fi signal in most places around the house.

However, it takes 30 to 45 seconds buffering to link to a normal News app, like sky News.  Indeed, it fails to link up to the Irish National News app.  Similarly, trying to access weather apps, they take ages to load up.

If I am listening to radio on my iPhone six, if I try and look up another website, while listening, the radio signal drops, and comes back when I exists the other website.

I just find that it takes ages for things to load up, but that once on the signal is solid and consistent.  The Wi-Fi signal shows 50 Mb per second download near the satellite, but the drops away to under 20 at the furthest end.

Has anyone any similar problems, and any solutions.  I tried to contact net gear support but I find it extremely difficult