Technical Debt and Version Lag

Experts pointed out that while UE5.2 introduced PSO (Pipeline State Object) precaching and newer versions like UE5.6 have seen significant performance leaps, completely eliminating shader compilation stutters and loading hitches still requires time and meticulous polishing by development teams.

Obsidian Entertainment, for instance, faced specific constraints while developing Avowed. With a technical team of only 15 people—just four of whom were dedicated graphics programmers—and the necessity of optimizing for lower-end hardware like the Xbox Series S, they were forced to stick with UE5.3.2. This meant they could not benefit from the optimizations found in more recent versions.

The Dilemma of Development Cycles

This "version lag" is a widespread phenomenon among UE5 projects. In the case of the 140-person team working on Avowed, the technical group accounted for only 10% of the total staff. More critically, the engine version chosen at the start of a project is often difficult to upgrade mid-development.

Upgrading is not just a matter of resource limitations; it can also lead to significant disruptions in the established workflow. Even though the latest UE5.6 offers substantial performance improvements, the cost of migrating is simply too high for games that have already entered the deep production phase.