Why am I getting 30ms frame spikes in Palworld at 4K Ultra?

While building a massive base, I experienced 30ms frame time spikes every few moments, which severely hampered the feel of the game. I tried lowering shadow quality to medium, but the visual quality tanked while the stutters persisted, leaving me feeling anxious. I used the GamePP Resource Scheduler to set VRAM priority to maximum and cleared 3.5GB of redundant texture cache. RTSS monitoring showed frame spikes dropped to 14-17ms, with GPU core temperature at 58-64℃ per AIDA64 and VRAM temperature at 72-78℃ via HWiNFO.