861 realtics are about right. Here’s a video I’ve recorded on my old S7 edge (Exynos): http://www.mediafire.com/file/60fai2srerzw98i/Magic_DosBox_2020-02-08-17-23-46.mp4
That’s how it should work. I’ve tested this w/o Expert settings btw, just normal setup via Magic Dosbox’s UI.