"Low" voter turnout is not a problem. Everyone who declines to vote is sending a message to the Authorities, either that they are too stupid, just don't care, or maybe don't like the available options. Regardless, not voting is a choice and produces results.
Movements to increase voter turnout are insidious, and invariably result in low-information and gullible voters turnout out to support the candidates promoted by pressure groups.
If I were Emperor, elections would be held between midnight and 3 am on Saturday nights, with no mail-ins and no exceptions. The only problem I see is that a lot of voters would be drunk, but that's OK.