massoblivion ;
If there was 5 features to suggest, they would be:
1] Object Highlighting = Highlight containers that can be looted, objects that can be interacted with, people that can be talked to. Would greatly reduce tediousness of trying to find a specific something in the environment. Then change its color, if its been looted once already or eliminate it entirely if it is empty.
2] Change the Camera Viewport Angle = The nausea I get from playing it is entirely due to the angle and the camera bobbing. It might be more "realistic" but I prefer "functional / practical" over "realistic". There are a lot of good third person cameras to take inspiration from, such as Rise of the Tomb Raider, WH40k Space Marine, or Gears of War. Move the camera angle for walking and running to something like them, and it would eliminate a lot of the problems I have with it.
3] Eliminate the Need for Stat Grinding = Make it so that you can do the activity at any stat level, but give more benefits the closer you are to maximum. That way, doing more of the activity will make you better at it, but you aren't locked out of content because your stat is too low. Very few games are enjoyable when you have to grind stats or skills. For example, Skyrim, you can do basically any activity at the lowest skill level, but being higher in a skill, will just make it easier to do it. Whereas, in Fallout 3, if your computer skill is too low, you don't even get the chance to hack a higher grade computer.
4] Eliminate Input Delay = I've noticed that for interaction and even starting to walk there is like a 250 ms delay before doing the action. Some things have even greater delay, such as sprinting; I hold down shift and then after 1000 ms I start running. This combined with the camera angle makes for very frustrating control experiences. Turning the character is especially problematic as it sometimes reads the turn too fast and the camera swings violently, and other times it is too slow and then it runs into a situation where I turn right, but then turn left, so then it turns right when I wanted to turn left.
5] Eliminate Timed Dialogue Responses = Everyone hated them in Mass Effect, so learn from their mistakes and remove them. Most of the time, the interactions don't even need to be a quick response... its not like in Mass Effect 2 where you had a short time window to do a Renegade action. There is no benefit to responding quickly in the situations in this game, and honestly, the text is quite small and it takes time to read all the options. I'm a fast reader, and even for me, I'd lose 50% to 60% of the time on the bar, reading the text.
I do like the art style, animations and such, but I can't really play it for more than 15 minutes before the nausea overwhelms me and I quit. And without saving of any kind, if I quit after 15 minutes, I have to redo all 15 minutes the next time I sit down.