After running Quake in OS/2 successfully, you may want to compare the performance of the game in your machine with mine. I'm certain that it will run better under OS/2 Warp 4.
I have a Pentium 133MHz CPU, Tyan Tomcat I motherboard with 512KB cache, 16MB EDO RAM at 60ns, Quantum Fireball 1.2GB hard disk, Matrox Millenium video board with 2MB WRAM, SB16, NEC 4X CD-ROM drive, 15" monitor, sound sampling rate of 11KHz, and OS/2 Warp 3 Red. To be fair and consistent, I used Quake 1.06 (and no other unnecessary programs in the background) and executed "TIMEDEMO DEMO1" from the console. The framerates are listed below: