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See example: http://youtu.be/HD5ocS60OP8
judging from the video you presented, it looks like it could be one of two issues. 1) the speed of your flash drive is rated low speeds, or two and this is quite common with Firefox I find, you have too many tabs open and that can also cause Firefox to slowdown to a crawl sometimes.
your friendly neighbourhood moderator Zach Thibeau
It is the "speed" of the flash drive. If the apps are moved to another f.x system drive or fixed portable drive they run faster.
But the slow flash drive is a complete new (http://www.corsair.com/en/usb-drive/flash-voyager-gt/flash-voyagerr-gt-u...) running from USB 3.0 port. Theoretically it should be fast...
Many thumb drives have poor (or abysmal) small file performance even though their sequential speeds are quite high.
A number of apps run poorly on drives with low 4K random speeds.
Here's a picture of 4K test: http://postimg.org/image/lm8v7ccfx/
That speed is fine for running portable apps. it's faster than lots of drives people regularly use.
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Reformatted the drive. Seems quicker now - see example here: https://www.youtube.com/watch?v=0r0TTMXz3Qc
The device had normal benchmark performance. Apparently re-formatting did something. Any format (fat32 or ntfs) worked. So it wasn't the speed of the device or pc-bus.
The device came preformatted. New format was done with windows 7.
Still data connection to this corsair voyager usb device lags, while other usb devices even on usb 2 port don't. So it's not good running apps from. And it's neither possible to change type from removable to fixed, so it can only have one partition.
Check here example of lagging performance: https://www.youtube.com/watch?v=p7F8pZClM2U
Even if the corsair has faster transfer, it's no good with the lag. (and it's a brand new device)
It clearly shows that users may think they got a slow internet link or a bad graphics card or problems with their browser plugins/extensions when it's really the disk i/o halting performance EVEN THOUGH a benchmark test show faster transfer rate than other drives and CHKDSK reports no problems detected! That kind of bugs is a top seller of graphics cards and new gear!