Graphics card: 2048MB ATI AMD Radeon R7 M370
Laptop system: Dell Latitude E5570
Operating system: Windows 10 Home 64bit
Driver version installed: Radeon Software Adrenalin Edition 18.12.1.1
Display devices: Generic PnP Monitor (1366x768@60Hz)
Motherboard: Dell 06YF8N BIOS version 1.18.6
CPU: Intel Core i7 6820HQ
Power supply unit: Dell DA90PM130 90W
RAM: 8 gb
Been experiencing severe fps drops caused by fluctuating gpu utilization while running destiny 2. Game will run smoothly without any stutter for the first 15 minutes of play immediately after turning on the computer, but severe fps drops lasting about 10-20 seconds then start to occur, increasing in frequency until they start happening every 30 seconds or so. This is seemingly caused by a large drop in GPU utilization which occurs every time fps drops
I started palying destiny 2 about 2 weeks ago, and prior to this issue, which only started around 2 days ago, I was able to run destiny 2 on low graphical settings without any game breaking fps drops. The graphical intensiveness of the activity in the game also did not seem to affect the frequency of the lag spikes, as they continued to occur and increase in frequency regardless of whether I was playing multiplayer free-roam or single player activity or even just in a loading screen. The drops in fps are also accompanied by audio stutter, and when the fps drops become too frequent and intensive, I will be removed from whatever activity I was participating
Start Monitoring CPU,GPU Usage and Temperatures.
Like Msi afterburner OSD
Propably you can get thermal throttling because you hit to much temperatures, most laptops have problem with temperatures.
Solution.
download and run Msi AfterBurner ( with install rivia tunner)
Start monitoring when you play and check what is doing your CPU,GPU when you have drop FPS
And most check your temperatures when is drop 
