Dolphin freezes when I stop emulation. Also, any general tips?

[GenericAlias]

Basically every time I exit emulation the program freezes and I have to force it off. Any work arounds or recommended developer versions of Dolphin I should take a look at? Admittedly it's not that big of a deal but I want everything to feel slick instead of hammering the X button every time I stop a game.

Here are my computer specs if it helps:

Operating System
Windows 8.1 Pro 64-bit
CPU
Intel Core i5 4690K @ 3.50GHz
RAM
8.00GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
Motherboard
Gigabyte Technology Co., Ltd. Z97X-SLI-CF (SOCKET 0)
Graphics
2047MB NVIDIA GeForce GTX 760 (ASUStek Computer Inc)


Also, on a side note, any tips to keep in mind to improve Dolphin performance? I've just been messing around with Melee and Fire Emblem PoR with default settings and was just curious. Also, if I were to overclock, what speed should I shoot for to run a game like Super Mario Galaxy at full speed? Thanks guys!

[JMC47]

Change memory card to GCI folder. It's a bug in the latest builds until a race condition gets fixed. All saves automatically get ported over.