Older PC games have also received some love, as the new version addresses the issue of playing these games on high-core count CPUs. Proton reduces the number of CPU cores observed by games such as Far Cry 2 and 4, The Witcher 2: Assassins of Kings Enhanced Edition, Lara Croft and the Guardian of Light, Warhammer 40,000: Space Marine, Dawn of War II, Dawn of War II—Chaos Rising, Dawn of War II—Retribution, Outcast—Second Contact, and Prototype, allowing them to run more smoothly.
Anyone know of any details as to why this becomes an issue, why many cores causes older games to not work properly, requiring proton to hide extra cores from them?