Looking to fix bufferbloat

Hello all, I'm making this post today because i've recently upgraded to 900/110mbps fibre and i notice when someone downloads a large file i get significant freezing/ping spikes in certain games and i was looking at SQM and OPENWRT was just wondering if anyone could guide me in the way for a best case router for this?

I have done the bufferbloat test and get an, A score with a caution on the low latency when downloading and i was hoping this could solve the issue.

Thanks again.