The Rewind mod is so good. Althogh i get 30 fps with OBS i get at least 100 fps with rewind mod. It is insanelt PERFECT. As it also lets u add shaders, resource packs and freelook after recording it is THE BEST RECORDING THING FOR MINECRAFT. However, there are naturaly some bugs as this mod is new. For exc inventory item names bug and voice slide a bit from the video( sometimes voice comes before the video that happens). If you constantly update this mod it will be a game changer. Thanks for the developers of this mod. If they want i can also help them by detecting bugs and reporting whenever i find them. Btw i play in 1.21.x versions 99%
I hope this post will help for the rewind mod for getting more frequent updates and making everyone happy :)