Luckily a fine user modded the Force Unleashed executable to let you increase the 30fps cap.

As a side note, this mod also includes modded .exes for Force Unleashed II as well!

1. First download this .7z file[community.pcgamingwiki.com] and extract it (use winrar, 7zip, etc)
   
2. Navigate to your local install of your game (C:\Program Files (x86)\Steam\steamapps\common\Star Wars The Force Unleashed)
   
3. Repace the original .exe file with the modded one of your choosing!

NOTE: The increased frame cap may result in a higher chance of crashing, the unlimited cap option increases this chance even further. When running over 40fps this mod can also cause objects to automatically rise when you force grip them when.

This fix just needs you to edit some config files.

1. Navigate to "C:\Users\USERNAME\AppData\Local\Aspyr\Star Wars The Force Unleashed"
   
2. Open "Config.xml"
   
3. Edit "<s id="VideoWidth"> insert value here </s>" and "<s id="VideoHeight"> insert value here </s>" to your desired resolution
   
4. Enjoy the game in 1440p, 4k, and above!

NOTE: If you want to quickly get to "C:\Users\USERNAME\AppData\Local\" just type %localappdata% into the Windows search bar or Run.

This looks to be directly tied to Intel Onboard Graphics. It seems Intel iGPUs are unsupported by the game. The only way found to fix this so far is to have an AMD or Nvidia graphics card.

Steam discussion on the issue

For whatever reason sounds cut out on the last two levels.

1. Navigate to "C:\Program Files (x86)\Steam\steamapps\common\Star Wars The Force Unleashed\LevelPacks"
   
2. Download the fix from this guide and extract it
   
3. Replace all the files in the \LevelPacks directory
   
4. Enjoy actaully hearing proper sound in the last two levels