suddenly, after upgrading to UE5.6 I find I get a major FPS Cap on my editor (even on different Projects) of 30FPS and when I run my project to test, I get 4fps. what gives? ok, apparently, the A770 senses the monitor’s refresh rate. mine was set to 29.9Hz so I change it to 60Hz and my FPS went up. Also, the graphic software has profiles and if you don’t create on it will set the frame rate to limited. So, I had to create a profile for Unreal Engine and set the FPS Limit to unlimited… I had to also do that for each application I was using as well like ARK and Valheim. Now it is working much better.
The culprit was the Intel Arc Drivers. To fix create a profile for UE or your game and turn the Vertical Sync (“VSync”) off and Run the program. Also, within your game development you can use the blueprint function to turn it on or off.
The “VSync” sets the video FPS to match the Vertical Refresh Rate of your monitor. So, if your monitor native refresh lets say its 29.9MHz you get an FPS of 29.9 limited or say 60MHz you get a max FPS of 60 FPS. Turning it off you can achieve higher FPSs. Why did I see this happen…. Hmmm well I have a vision problem (Legally Blind) I can see just not that great, so I use a 50 Inch UHD TV as a monitor and it has a Native VSync of 29.9MHz…