GrayMeta Iris Player
Media files – particularly 4K HD files – require a lot of computing power to play accurately. Because of this, media players take actions to smooth out playback such as dropping frames or reducing fidelity to minimize the required computing resources.
Thats perfectly acceptable for general consumption as most consumers will not take notice. If smooth playback is all you require then there there are a number player solutions including free options that might work for you.
However, many media professionals need to accurately view the files as they are truly encoded/mastered and without the software viewing optimization techniques which will not apply to the ultimate consumer. And true, accurate playback is exactly what the Iris software does!
There are a number of components in your hardware configuration that could impact your playback experience. Many media pros opt to leverage Iris pre-loaded on hardware that is tuned to optimally play these files.