Alley is a slim player and converter and i think it should stay this way.
You can do it inside arena with the "clip render" if you want to take some load of your system. maybe not the solution you want to have but the only you have right now
Laptop: XMG P507 // Intel i7-5500 / GTX-1060 / 1tb SSD / 32gb RAM // Lemur / BirdDog Studio NDI
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