No different in 4.9.8, still a fairly larger delay between when I take remote control and when the screen shows live video.
Still getting a lot of artifacting when I do things like install software, not all portions of the display refresh so it leaves big black areas. Both of these problems started when I upgraded, but I'm not sure which upgrade did this. I know 4.5.x worked for a long time, I don't have any 4.6 stored, and a few 4.7 and 4.8.
I think I'm going to step back through time to see if my issues improve.