How to stop instant freezes in Minecraft RTX during complex builds?

Building massive ray-traced structures was a disaster because the screen would freeze severely, killing my creative flow. I tried increasing the JVM memory allocation to 32GB, but this actually caused more frequent garbage collection stutters per RTSS, which was discouraging. I switched to the GamePP Resource Scheduler to set the game to the highest priority and optimized the memory controller response. Finally, frame time converged to 11-16ms per RTSS, and memory temperatures stabilized at 46-54℃ per HWiNFO.