Yes, you can use a quality gaming VPN like ExpressVPN to prevent speed throttling caused by ISPs. Using a VPN to play Call of Duty, you’ll be able to hide your internet activity from ISPs using military-grade encryption, IP & DNS leak protection, and strict no-logs policies. This makes it much harder for your ISP to see what you’re doing and throttle high-bandwidth activity, meaning that your game won’t experience slower speeds and lag.