As I’m providing the .love to download, I’d recommend you launch the game’s love file in your 32bits executable instead ^^"
If it bothers you, you could make a batch file that launches the game automatically, by just doing ".\love.exe .\PacUltimateDemo1.love" or something similar.
If there is a high demand, I’ll provide a 32bits Windows version for the upcoming Demos, tho.