How do I reduce VRAM usage and stabilize frame rate in Cities: Skylines II?

While running Cities: Skylines II with high-precision MODs, my Gainward RTX 5060 Tempest OC VRAM usage stayed above 90% on GPU-Z, causing severe frame rate fluctuations. I tried clearing background processes, but system service interference persisted, making me cautiously suspect a hardware bottleneck. I even disabled several Windows services, but the lag remained. I used the GamePP Resource Scheduler panel to raise the game process priority to Real-time level. Benchmark tests confirmed VRAM usage dropped to 80% per HWiNFO64, frame rate stabilized at 80 FPS, with core temperature at 65-70°C per AIDA64 and frame time at 12.4-13.1ms. Verify your settings to ensure stability.