A couple of possible bugs in El Capitan

hello, everyone.

I am a brand new Mac user, having had my MacBook Air for four or five weeks now. I just installed El Capitan on my system because I was having problems navigating the Bookshare web site. I am now able to navigate Bookshare now, but I have encountered a couple of problems, one that I consider a possible minor bug and one that is a moderate problem.
First to the minor one: Since I am a new user , I have VoiceOver set to high verbosity. I notice that when reading text on a web page with up and down arrows, I am constantly annoyed with VoiceOver hints. I just started noticing this after El Capitan. If I do a VO-A, the hints don't come up. I know I can just hit the control key to silence speech, but it is rather annoying. I don't want to permanently turn off hints, because they help me at times. I just don't think they should be spoken when I haven't moved to a different element on the web page.

The other problem I noticed after El Capitan, is difficulty logging on to my system when I first start it. I originally had my system set to enter a password when I turned it on. However, several times, I had to wait a full three or four minutes before I could enter my password. When I tried to enter the password, I would not hear the clicks that would confirm I was in the secure edit field, and the password bullets would not appear. After a few minutes, I would get the prompt to enter password. Because of this, I went into system preferences and changed the option to be able to log in automatically. I am the only one who uses my Mac, so this is not a major problem for me, but what about those who have their machines in an office or who share it with others? Is this a bug, or am I doing something wrong? I was always able to log in right away with Yosemite, so I was surprised when this came up. Thank you everyone for your patience with this long post.

Jane P.