Vitor Manuel
Can I change the settings of Hialgo Boost to lower the quality by less than 50%?
Quote
QuiteReluctant
No, I don't think it is possible. You can only make it bigger than 50%: 60, 70, ..., 90.

From http://www.hialgo.com/BoostFAQ.htm :

  • Ctrl + Shift + (+/-) controls the minimum allowed resolution (50%...90%)


(We tried lower resolution, down to 33%, during development, and it is still available in the old Boost, which works for Skyrim only:

http://www.hialgo.com/SkyrimFAQ.htm#Dynamic_resolution_modes_and_how_to_tweak_them
http://www.hialgo.com/SkyrimFAQ.htm#How_does_the_game_REALLY_look_when_the_resolution_goes_down)

Quote