Significantly longer. Because the compression is so "heavy," your CPU has to work much harder to unpack the files, which can take anywhere from minutes to hours depending on your hardware.
A focused experience that takes about 4.5 hours for the main story and up to 8.5 hours for 100% completion. RG Mechanics vs. FitGirl: Which Repack to Choose?
The Ultimate Guide to Far Cry 3: Blood Dragon Repacks: RG Mechanics vs. FitGirl
Includes a file integrity check to ensure your installation isn't corrupted. 2. RG Mechanics : Faster Installation
Many skills from Far Cry 3 are unlocked from the start, allowing you to focus on the explosive action rather than grinding.