My native resolution is 4k so I record in 4k using OBS . When I set the video settings to 60 GPS the recording has a Decent size of 100mb per minute with good quality but the recorded video is very choppy and very lagging like it's buffering or stuttering very badly and I think it's because my in-game fps is lower than 60fps at 4k which I play at so it cause heavy lagging in the recorded video so I turned down the fps settings in obs video settings to 30fps instead of the 60 and my recorded video is smooth just like my gameplay but then I discovered that the recorded video size of the 30fps settings is like 500mb per minute . I don't understand how to fix this cause I thought a higher FPS value results in bigger size but its opposite and the difference is massive . I only changed the FPS from 60 to 30 and it's size increases by 5 times . If I change it back to 60fps the size becomes 100mb per minute again do I am sure it's from this setting please help . This lower file size is the only reason I am using OBS . If you know how to fix my choppy video at 60fps also please help . My in-game is always smooth but the recorded video at 60fps is a trauma to behold .