Low fps on fast retro

[roboticmehdi2]

Retro PC specs: socket 7, pentium 200mhz, 512kb L2, 24mb ram, tseng et4000ax vga, ms-dos, default bios settings, autoexec.bat and config.sys are blank(nothing is loaded). Doom timedemo demo3 runs at 21 fps. What could be wrong? People get better results with 486 and 8mb. I'll try to provide any info required.

[andrewj]

You can try asking on the Vogons forum, that place is more into retro gaming.