Insane ping/degradation when downloading
Just switched to M125 (~130mbps, Hub 3 I believe) from Sky "Superfast" broadband (30mbps) and instantly noticed one big difference. When I'm downloading a game on my PS5, my ping in an online game is ridiculous. I'm talking 120-250, bouncing all around. This also affects other devices, like streaming ones.
I understand that downloading something does this, but Sky wasn't anywhere near this big of a difference. I wouldn't even notice the lag most of the time and I would only go to around the 40 range when downloading through a 5x slower speed.
I could download and play on much slower speeds on a Sky Hub that was probably not far off 10 years old, WiFi and ethernet was better than wired Hub 3. I absolutely cannot play and download at the same time with this Hub 3.
I've seen talk of buying another router and setting up in modem mode, but I really don't think I should have to do this. Would this work? I'm only really bothered about not being able to download something simultaneously, also worried about if another device starts downloading stuff randomly if it'll hit my connection in the same way.
Virgin's own app has my latency at 232 whilst downloading.