And gpu+ is faster for me that normal gpu rendering but cpu rendering is fastest, i don't know why. I don't know why other screen recorders are so slow compared to this but i am glad i found this some months ago.
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Also there will be recording app called everplay for android but i don't know when because its gonna take some time to make it possible record without root but its for ios already. When it will be released for android i should record sound too like on ios, so you could get code from them to record sound. But even mic make my tab lag more.