Consistently slow response time, since 2.4.0

Mac Technical Support
Ever since the patch BEFORE the one that downloaded the 14GB of data (2.4.0 I think??) SC2 has been incredibly laggy. When playing multiplayer it takes more than a second to process any action except for jumping a screen location with a screen hotkey. This includes playing the A.I. etc. Also, sometimes the menus are buggy too, where I can't click "Play" or the buttons for 1v1 and 3v3 (sometimes the Play button shows a little lock symbol and is grayed out before I have clicked it) although that can pretty much always be fixed by going back into the main menu and coming back to Matchmaking. I was hoping the release of HoTS would fix this, but it hasn’t so I’m coming here for help. Single player is fine.

I have tried basically everything: removing cache files, the “variables” folder to add some extra line in didn’t even exist, reinstalling, turning off my firewall, lowering my graphics settings to all low, turning off IPv6, repaired disk permissions, changing my DNS addresses, etc.

I’m 100% confident it isn’t a network issue or a hardware issue, as neither of those have changed a bit from before all this lag began to afterwards.

Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro9,1
Processor Name: Intel Core i7
Processor Speed: 2.3 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 8 GB
Boot ROM Version: MBP91.00D3.B08
SMC Version (system): 2.1f173
Hardware UUID: BCE32195-8F61-59C3-BB47-18C3AB5429E9
Sudden Motion Sensor:
State: Enabled

Intel HD Graphics 4000:

Chipset Model: Intel HD Graphics 4000
Type: GPU
Bus: Built-In
VRAM (Total): 384 MB
Vendor: Intel (0x8086)
Device ID: 0x0166
Revision ID: 0x0009
gMux Version: 1.9.23
Color LCD:
Display Type: LCD
Resolution: 1680 x 1050
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Built-In: Yes

NVIDIA GeForce GT 650M:

Chipset Model: NVIDIA GeForce GT 650M
Type: GPU
Bus: PCIe
PCIe Lane Width: x8
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0fd5
Revision ID: 0x00a2
ROM Revision: 3682
gMux Version: 1.9.23

System Software Overview:

System Version: OS X 10.8.2 (12C2034)
Kernel Version: Darwin 12.2.1
Boot Volume: Macintosh HD
Boot Mode: Normal
Secure Virtual Memory: Enabled
Time since boot: 2:07
This type of slow response may indicate a corrupted cache folder. When you reinstalled, did you delete that folder as well?

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