I've decided to try my hand at speedrunning this game and trying to help any others who may decide to do the same, despite how obscure and underrated this game is. It was one of my favorite games growing up.
So far I've discovered about a 1 minute time save for the first level. Right at the end of the first level is a 1 minute time door with a shield on it. Normally you'd walk into the room and toward the door, it would spawn the barrier and your sister talks to you about defending yourself while she hacks the door. If you just hug the wall to the right when entering, kill the guy and keep hugging the wall. You can walk all the way around the room, still hugging the wall and bypass the trigger for the barrier, and just enter through and save about a minute of time. Knocking a 5 minute level down into a 4.
So far this is the only time save I've found but another forum on here mentioned figuring out the trigger skip a few years ago. I intend to upload more to this forum as I find stuff. Hopefully some other nerd out there will find this and appreciate the help.