Hello everyone who's using GeForce 7 series graphics card,
I think the fix for your freeze on start problem will be available on monday.
Meanwhile you can work-around this problem. In the place whereever you have The Polynomial data files installed (c:/Program Files/Steam/steamapps/common/thepolynomial in a typical install), go to data/music_visualizer sub folder, and change file extension or delete 003_Waves.lua to disable this visualizer. The waves visualizer, for some reason, works extremely slowly on geforce 7 series hardware.
Alternatively you can go to home folder / Application Data/Polynomial , and create config.100.txt containing
Do not select the Waves visualizer, and do not fly through rainbow coloured mesh wormhole.
Sorry for the inconvenience, and thank you for buying The Polynomial,