The only things that has been altered physics-wise is the damage taken and sprint time. Nothing is speeded up.
Producer:
Song: Boards Of Canada-Oirectine
All the console commands used:
cvarAdd pm_sprintMaxTime 99999999 - Longer sprint time
cvaradd g_showHud -1 - No HUD
cvaradd pm_noBob 1 - No "bobbing" from side to side.
cvaradd g_fov 30 - +30 fov, 110 in total.
cvarAdd g_permagodmode 1 - No damage taken what so ever.