If you are referring to the progression from the first release to version "2" (or subsequent version-tagged updates like v1.x series), the "better" aspect generally refers to: Enhanced Animation

The iteration from the base game to v1.52 includes: Save-State Reliability: Mitigation of save file corruption.

The ship's internal sensors now give a 0.5-second longer warning before a total lockdown.

The updated UPD system integrates three key enhancements:

Unlike static electric or physical shields, UPDs use air pressure gradients to gently redirect creatures away from critical corridors. Reaction data shows 89% of specimens turn back within 1.5 seconds, versus 43% with old barriers.

: The ability to tailor the HUD and experimental builds makes the game feel more like a modern title compared to the rigid systems of earlier versions.