Delayed or no responses to keyboard or mouse commands are seldom caused by issues of the client's code. It usually indicates that network packets didn't get through in time, or at all. This may have many causes, either in the network itself, or in the server's systems. If you encounter these phenomenons only at certain times of the day (e.g. prime time, which can spread over three to four time zones, due to the megaserver architecture), it's possible that the server's systems are running at maximum capacity due to peak concurrency, and thus delays occur (so-called "server lag"). If you encounter delayed responses at all times of the day, it may be a network issue.

Since the network route from your computer to the server infrastructure involves many parties, it's extremely difficult to pinpoint a single point of trouble. There may be more than one. As soon as the packets pass your router, things are out of your control. The one thing you could try, however, is switching from a Wi-Fi connection (if applicable) to a network cable, and see whether the problems persist.

@Moonraker has posted some excellent instructions on how to run a traceroute/ping to the ESO services in this thread. Maybe you want to do a traceroute and post it here for us to analyze. You could also run a ping over a greater length of time and look for dropped packets.

Screen freezes can also have many sources. It could be "graphics lag", i.e. your computer can for some reason not load fast enough the assets needed for displaying the current scenery. Or, in a relation to the "network lag" mentioned above, the client doesn't get the information of what to display in the first place. Generally in MMOs, the graphics display is tied to and dependent on information received from the server. You could post your system specifications here (see @Moonraker's post how to obtain them), if you like.

All of this is not related to the memory management/crashing issue of the current Mac client. While I experience the crashes, too, although in much longer intervals than during beta, I can report only mild/short "input lag" or delayed responses on very few occasions, usually during prime times.

I wonder how there always are people in a forum who try to make a smartass comment by commenting on a comment that said it all....

@KhajitFurTrader and @Moonraker‌ thank you for your great comments, I will try to post the stats here. Just want to say that you guys are awesome and I ve seen you help out on so many other threads... You guys Totally deserve loads of cookies!