HELP! Skyrim Low FPS on a High End System!!!

Please help! I'm only averaging 25 FPS in Skyrim on an NVIDIA GTX 765m (2 GB) ... Changing the settings from Low to Ultra does not change the framerate.

I have an ASUS G750JW with Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz (8 CPUs), 8 GB DDR3 RAM, Windows 8 64 bit. I tried updating the drivers but then the system failed to boot -- so I rolled back to the OEM's drivers.

Should I attempt to install NVIDIA's Beta Drivers??? Other than that, I can't figure out what would be causing the low framerates with my hardware.

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System Information
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Time of this report: 8/25/2013, 01:04:13
Machine name: WIZARD
Operating System: Windows 8 64-bit (6.2, Build 9200) (9200.win8_gdr.130531-1504)
Language: English (Regional Setting: English)
System Manufacturer: ASUSTeK COMPUTER INC.
System Model: G750JW
BIOS: G750JW.206
Processor: Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz (8 CPUs), ~2.4GHz
Memory: 8192MB RAM
Available OS Memory: 8110MB RAM
Page File: 3935MB used, 12365MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 120 DPI (125 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.02.9200.16384 64bit Unicode

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DxDiag Notes
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Display Tab 1: No problems found.
Display Tab 2: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Sound Tab 3: No problems found.
Input Tab: No problems found.

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DirectX Debug Levels
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Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

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Display Devices
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Card name: NVIDIA GeForce GTX 765M
Manufacturer: NVIDIA
Chip type: GeForce GTX 765M
DAC type: Integrated RAMDAC
Device Type: Full Device
Device Key: Enum\PCI\VEN_10DE&DEV_11E2&SUBSYS_119D1043&REV_A1
Display Memory: 4038 MB
Dedicated Memory: 1990 MB
Shared Memory: 2047 MB
Current Mode: 1920 x 1080 (32 bit) (24Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: E500d-A0
Monitor Id: VIZ1004
Native Mode: 1920 x 1080(p) (60.000Hz)
Output Type: HDMI
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 9.18.0013.1141 (English)
Driver Version: 9.18.13.1141
DDI Version: 11
Feature Levels: 11.0,10.1,10.0,9.3,9.2,9.1
Driver Model: WDDM 1.2
Graphics Preemption: DMA
Compute Preemption: DMA
Driver Attributes: Final Retail
Driver Date/Size: 3/7/2013 03:46:12, 18061328 bytes
WHQL Logo'd: Yes
WHQL Date Stamp:
Device Identifier: {D7B71E3E-52A2-11CF-8677-90311CC2C435}
Vendor ID: 0x10DE
Device ID: 0x11E2
SubSys ID: 0x119D1043
Revision ID: 0x00A1
Driver Strong Name: oem8.inf:0f066de3aa115aad:Section156:9.18.13.1141ci\ven_10de&dev_11e2&subsys_119d1043
Rank Of Driver: 00E00001
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C