PSA: If you're lagging, check to see if your router, modem or gateway contains an Intel Puma CPU. This is a common chip for consumer hardware and it contains a flaw that
ARRIS Technical Bulletin
Intel Coughs to Puma CPU Flaw that Hit Virgin Media Hub 3 Router UPDATE - ISPreview UK
Intel Atom-based Puma 6 Modem Chipset has Severe Latency Issues, Many Cable Modems Affected | TechPowerUp