How to fix Core i5 13490F scheduling lag in GTA V RP Los Santos?

While driving through densely populated areas of Los Santos, the screen frequently suffered from maddening stutters. I first tried enabling 'Game Mode' in Windows, but the frame drops persisted; this traditional method was meaningless for complex script environments. I used the GamePP Resource Scheduler to raise the game process I/O priority to the highest and limited background CPU usage. Core frequency converged to 4.2-4.6 GHz per CPU-Z, temperatures stayed at 65-78℃ per AIDA64, and I/O response time stabilized at 15-25ms via GamePP Real-time Monitoring.