Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Does it have a fairly fast shutter speed
Document: That's it. No options, no control. And it's painfully slow. Transferring a dozen images took almost 20 minutes. I have a FAST dual band wireless network. So the camera is the bottleneck. Convenience? Nice. Speed? Snail's pace. I can't find any information on the network speed, but I'm guessing 802.11b - the camera does power down after transferring the files.Messages: Had to laugh at some of these. The English is terrible, as bad as some stuff you'll find in poorly translated assembly instructions on Chinese lawn furniture.Overall this is a feature rich, compact phone with a huge battery life!If you're looking for a case/bag/pouch for it, theLowepro Ridge 10 Camera Case (Black)is a perfect fit.Followup: I've used this little gem to shoot around 500 photos.
Or use common sense and not use a flash when zooming 20X! With that zoom, you need good light, a stationary subject, steady hand - or tripod. The slightest camera shake (hand motion) is also magnified 20x! Once you're past 20 feet or so, the flash is next to useless - and drains the battery fast.
BUT, there are a couple of very minor issues. The cover on the USB port (connects to computer, charges camera, etc.) has a really flimsy design. I can see this coming off quickly. The little tab that keeps it in place is so short, it's difficult to plug in the cable. When zoomed in, autofocus tends to "hunt" - in tight focus - say 20x, unless the subject has a lot of contrast, focus may fail. This is typical of small cameras. The smart phone app is cool, but has limited features - it can't control any advanced stuff - just trigger the shutter, switch between movie and still photos, and zoom in and out.
You can transfer music to the camera from your PC for this. When you navigate to the camera from "My Computer" you'll see a link - clicking this takes you to a special Sony page for downloading various programs. Image conversion, music copy and more.WiFi: You need to install software on your computer to use WiFi?! This also also uses the Sony Play Online service - you get 5 gig of storage free. Download and install was pain free (Windows 7.) However, the software could not find the camera.
Tried numerous times and gave up. Tried Google - I typed out "play memories " and it autocompleted the "no camera found." So this is obviously a common problem. Reading through the replies, Sony always blames the computer. The camera DOES show up as an external device in "My Computer", so you can manually copy files. Spent oven an hour on this - never got the USB to work. I even found the option to setup the wireless network and did that. My camera logs into my network - but can't do anything?!?
The zoom is clunky - it zooms in and out a little with each tap - so no smooth zooming. For stills that's fine - for video, it's choppy. Still, it's a great feature. I tested it with my Droid phone, Droid tablet and iPad 2.Apps are available for Droid and i devices. The interface is identical. Tools: Self-Timer- on/off, Flash- auto/off, review check- Review, save image/review only/off. First you turn on Wi-Fi on the phone, then select "Ctrl with smartphone" - it's that simple.iPad: Ran the app.
The video is a simple clip, shot handheld on a sunny day. Just a good demo of the zoom and image quality, plus handling the colors. All very natural and not too saturated.------Update: I've been walking around with this camera for a month. Taken it on several of my Urbex outings. My observations: The key to great photos is using the scene modes. There are a lot, from HDR to night handheld dark. I accidentally used "handheld dark" and "HDR" at the *wrong* times and received great results.
The tablet could not read it, so I had to enter the URL manually, or optionally, just search the Play store.The camera streams to the device, so your tablet or phone displays a live image. Cool.You can't copy the video to the external device via wireless, and the images that auto-copy are reduced in size. You can manually transfer full sized images, but not videos. You need the USB cable for that.Other unusual features: The camera can play slideshows and video via HDMI, with music.
The strong points: scene shooting and the zoom. I just added some more zoom samples. The quality from 1/2 a mile away is amazing!One final thing. People are claiming there's a design flaw or bug - nope. It's not a design flaw. It's physics. My $5,000 DSLR has the same problem. A long lens occults the flash, causing a shadow in the lower left corner (the flash is in the upper right corner). The only way to avoid this is to move the flash totally off the camera.
Received an error: "Search the shooting device from the network setting of the terminal and set it"  HUH? Turns out you need to join the network from the settings menu (settings->wi-fi) before using the app. Entered password, done.Droid phone (Motorola Bionic): Ran the app, entered password, done.Droid Tabled (Samsung Tab 2 10.1): Installed the same as on the phone. One problem - the QR code on the instructions was folded in half and small.
Answer: I don't know exactly how fast you mean; but, since it can take very good images at night light, it means that it has a fast enough shutter speed. Also, I think that you can adjust the shutter speed in the settings (just check the user's manual that I have mentioned in my other response).