Stick to 640x480 or 800x600. While the Voodoo3 can do 1024x768, the emulation cost rises significantly. Troubleshooting Common Issues
Ensure you are using the Voodoo3 drivers specifically, not generic Voodoo Graphics or Voodoo2 drivers. 86box voodoo 3
A modern processor with high single-core clock speeds (Ryzen 5000+ or Intel 12th Gen+). Stick to 640x480 or 800x600