: Because the game struggles with multi-core CPUs, forcing it to run on a single core can eliminate stuttering. Open Task Manager , find Game.exe under the "Details" tab, right-click it, select Set Affinity , and uncheck all boxes except for CPU 0 . This method is a common fix for RGSS-based games as noted by the community at Reborn Evolved .
If you don't see this file, check the Insurgence website or Discord for the "MKXP Patch" or the latest version download, as it is included in modern installers. pokemon insurgence lag fix