Game randomly started stuttering

Starcraft II Technical Support
Out of nowhere the game now stutters every 10 seconds or so for about 1 second
i have not changed anything on my PC in the morning it was fine and now it stutters.When it does my GPU drops to 0%.
Its only starcraft 2
CPU and Ram are fine
My hard drives have plenty of space
I have updated all my drivers
Its not an overheat problem
iv reinstalled the game
I have disables all overlays

Specs:
6GB Nvidia 980 TI
AMD Ryzen 5 1600
16 GB of RAM @ 2933MHz

halp
I fixed it by changing the game settings to launch on 32 bit instead of 64 bit
Can someone explain the difference and why it worked?
simply put, starcraft 2 is not optimised for amd processors. a better processor might still help as the ryzen 5 is a mid range cpu. the ryzen 7 should work better. on the other hand, your problem looks like something i had called energy effecient ethernet. you can turn it on or off from device manager. it needs to be off for multiplayer.
I have the exact same problem and I have the following specs

intel corie i7-7700 CPU @3.6ghz
16 gb ram
64 bit operating system
nvidea GeForce GTX 1060 (6 GB)
I use an ethernet connection with 50mb/s download speed and 20mb/s upload speed
I have this problem only with my blizzard games ( I play sc2 and diablo 3)
it started in mid march and I am at a loss as to how to rectify it
none of my other games have this issue ( I also play a lot of games on steam servers

can I please get some assistance with this issue
greatly appreciated
Hey VANGOROTH,

Let's start by going through the steps listed in the Starcraft II Performance Issues Support article. Make sure to go through all the steps listed thoroughly (including the advanced troubleshooting), and test once more afterwards.
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