This is what a PUMA6 intel chipset modem does to your latency, This causes jitter in games voice chat and virtual meetings. This is a major issue to quality of service. Using
Are your Puma powered packets ponderous? A router update should be coming to fix your latency - PC Perspective
Why your gigabit broadband lags like hell – blame Intel's chipset • The Register
Arris and Intel partner on firmware fix for Puma 6-equipped cable modem | Fierce Video