Hello, been trying to figure this one out. originally I thought this was an issue with OBS but I noticed if I stop streaming and just try and watching a youtube video or a stream on twitch the CPU utilization for Core 0 goes to 100% and chokes out the video stream. It gets really choppy or stops playing altogether, This only happens when I have FFXIV as the focused window. If I select the browser it runs fine. I noticed in resource monitor that when the game is focused, core 0 jumps up to 100% It doesn't matter which browser I use either, chrome or firefox, I get high CPU usage.
framerate in the game stays fine though, no stuttering or dropped frame (average framerate is 60fps at maximum) I tried lowering the quality settings but the performance issues are unchanged.
Does anyone know what could be causing this? Everything worked fine up until sunday. I even streamed this game for 6 hours on saturday without an issue. I stream at 1080p 60fps with a bitrate of 3500kbps. I did this using the software encoder set to very fast and I was getting smooth clear graphics. The next day, opening a stream while playing the game and the video player in that window stops responding, try and stream and I get encoder overloaded error messages and the CPU usage on core 0 goes to 100% while the game itself is reporting 20% cpu usage, fire fox/chrome claim to be using 3% of the CPU as well as OBS floating between 0.5% and 4% while it's broadcasting. I've tried various things, adjusting OBS settings, adjusting browser settings, using compatibility mode on FFXIV, running it as an administrator to no avail. I even made sure there were no "game enhancing" software like Nvidia Experience or Windows Creator Update installed since people have been reporting issues with those programs. Below is a post of my system information for troubleshooting purposes. I'm hoping someone here has had this issue and got a fix for it.
Operating System: Windows 10 Pro 64-bit (10.0, Build 14393)
Motherboard Model: Gigabyte AX370-Gaming 5
BIOS: BIOS Date: 04/07/17 16:44:40 Ver: 05.0000C
Processor: AMD Ryzen 7 1800X Eight-Core Processor (16 CPUs), ~4.0GHz
Memory: 32768MB RAM
Available OS Memory: 32716MB RAM
DirectX Version: DirectX 12