TBH, my Surface 2 has not been sluggish at all which, I think, is a function of the Tegra4 SoC. The Surface RT (i.e., the 1st gen device), however, was and is sluggish especially before 8.1 was released. Usually, the sluggishness was apparent when opening up apps and when running more than 2 apps. But some of this problem, I think, has been ameliorated with the 8.1 release. The caveat is that I have not worked on the RT at all after I received by Surface 2. It is currently at the service of my family member.
Btw, I am currently in India and will be in Mumbai the day after tomorrow. Maybe I will be the only one there with a Surface 2?????:smile:
Edit:
Battery life: I suspect the battery life on the RT is slightly better than that of the Surface 2. I think the screen in the Surface 2 plays a role in this. Otherwise I have found the battery life on the Surface 2 to be perfectly acceptable. I have consistently found that I get between 8-9 hours of battery life with the following use: 2 Word documents open; WiFi on; IE11 open with 4 tabs; brightness at default settings with auto-dim on; 1 PDF document open and all applicable Live Tiles on. On the flight to India (which took about 9 hours excluding the time spent travelling to and from airports, the waiting time at airports and with flight mode on), I found that even after working on Office documents (but with no media playing), I had about 50% battery left when I reached my hotel in Mumbai, which is when I plugged it in.
The speaker issue: I rarely use the speakers so I can't speak about that. But yes, reading through various forums, I have found many to be reporting the issue. Apparently, there was a similar issue with the RT also in its initial stages, but was fixed by a s/w update subsequently by MS. One hopes the same will happen in the case of the Surface 2. In this connection, I think that over the next few months, MS will be issuing a number of firmware updates that will further optimize the Surface 2 and of course updates to 8.1 that will refine the OS further.