Thank you for playing the game!
Voice acting and cinematic cutscenes was always on my "to learn" list and this jam helped us improve a lot. Im really glad that you liked the game and we appreciate your feedback!
This issue you encountered was because of the too many props and particles happening in the scene at the same point. After the cinematic we optimized it a bit (by making invisible the props player cant see) so it will not be uplayable (Thats the reason we avoided the Browser as well ... playing a game at 10-15 fps is by itself brutal ;p )