Bluetooth mouse/trackpad sometimes lagging

I've been using my Apple Wireless Keyboard and Trackpad for as long as I've had my 15" Retina Display MBP, and they've worked great. Just in the last few days I've been experiencing brief lags with both keyboard and trackpad. I'll be typing along, and suddenly characters aren't appearing on the screen. Several seconds later, they pop on, and I can keep typing.
I haven't changed a thing on my system that I can think of to have caused this. I've changed batteries and it still happens.
Any ideas what could suddenly be causing this?

Please use Apple Troubleshooting wireless mouse and keyboard issues located at http://support.apple.com/kb/ts3048

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Thank's for your reply rkaufmann87, but it is not setup related.
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My Bluetooth mouse, a Logitech v470 laser mouse, lags often on my MacBook Pro. I'm thinking that maybe it could be conflicting with my Wi-Fi, which is also enabled, and which uses the same band as Bluetooth – 2.4 GHz? Could this be the reason for the lag? My Wi-Fi also drops sometimes, so I don't know if the two are related or not.
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http://support.apple.com/kb/HT1365
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Hey guys!
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The USB ports, BT chipsset and Airport Chipset are all using the same data bus in the Macbook.
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or
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Wow...
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http://apple.com/feedback/macosx.html

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ethernet cable + bluetooth mouse + network traffic = no mouse lag
wireless ethernet + trackpad + network traffic = no mouse lag
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Bluetooth mouse/trackpad sometimes lagging

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