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
Puma 5 Product Bulletin
Intel upgrade to fix cable modem latency
Lawsuit Brewing Over Unfixed Bug in Intel Puma 6 CPUs
Intel® Puma™ 7 Development Kit
Intel Unleashes Multi-Gigabit Performance With New Puma 7 Chip | CdrInfo.com
SQM on eero Pro 6 helping a lot with modems using Intel Puma 6 chipsets : r/eero