Notice how video stutters as well as playback time changes abruptly when changing playback speed (only for 1x to other and back to 1x. No issue while changing playback speed when it isn’t 1x). Although I have given one example, this happens for me in every video, whereas IINA does this very smoothly without any issue.
One more thing - spatial audio gets disabled when playback speed is not 1x.
It would probably help to provide the device, devise os version number, and the version number of Infuse on that device.
I am using M2 MBA, macOS 15.3.1 and Infuse 8.0.9