>>3387761I have owned and/or extensively used an RX100, A7ii, A7iii, Canon EOS R, Nikon D3200, Canon 6D, and 80D. I hope you have updated the firmwares to the current version because that usually fixes some of your issues
>The autofocus ...Sony FE 50/1.8... is slow as fuuuuckBecause you literally bought the SLOWEST lens they produce. If you had done any research at all you would know that the 50 1.8 is slow before buying it. If you want a fast 50 you get the 55 zeiss
>There's not a way to directly select an AF point without switching to AF point select modePut it on the circle button in the middle of the Dpad to activate, and then use the Dpad to move around. Or just use the selective spot modes (again, use a custom button to activate) it's about the same as a joystick, not much worse
>The AF point doesn't track with the camera's orientationuse D pad to move point around.... better yet, use AF-C because it's 99% accurate... you don't use these cameras like you use a DSLR. The camera is smart enough to find the right focus point, and fast enough that if it doesn't, you can move the camera to focus on what you're looking for and it'll lock on. No need to constantly reposition yourself like a DSLR
>Eye-detect is nice, but I haven't yet figured out a way to switch it on and off...Set it to your AEL button or similar - eye detect won't turn on unless you hold the button then
>Startup lag is measured in seconds rather than being too short to perceiveIf this is true your camera has something extremely wrong with it and you should return it immediately. My A7ii started up faster than I could raise it to my eye
>You can't set a minimum shutter speed in aperture priority modeYou're in aperture mode. Just shoot manual if you want to adjust both, not hard to figure out.
It sounds like more than anything you need to read your manuals, learn the menus (and set up your camera the way you want it) and learn how to use a mirrorless camera because it's not a DSLR.