If you happen to follow my Livestreams, I recently bought a newer gaming latop and have come into the famous "Stutter" Every 30 seconds I would get 2-3 second frame drop from 60 to 0. First, lets go through the basic methods that did nothing to solve it for me that have been repeated on here for years- Whitelist folder in all security programs-Antivirus-Firewall and of course windows defender turned off including real time protections(I even used windows defender uninstaller, a program that destroys it off your PC) I also fixed a launcher issue stuck at checking version via port forwarding port 20200 on my router and resetting the gateway which fixed it. NOW, I have been through hell, countless hours hunting down this stutter issue and had a breakthrough. I have been on several Nvidia gaming forums researching, asking questions and with several of there members within a MEGA 300+ page thread we isolated the issue which fixed it for me, Windows 10 Build 1803. Many gamers on there 1500+USD PC's suffered this problem with many games. How did I solve this? I found a 1709 Windows 10 build iso and installed it on separate laptops and PC's with 100% success rate of solving it. What version do you have? Go to setings-system-about and you will see. Hope this has helped.
~Kakarot