New Sleeve 12/14 Food questions

I was sleeved on 12/14 so I'm only 2 weeks and 1 day out. I'm currently on purée only for 3 weeks and it's going ok. However, I'm finding it very difficult to wait 2-3 minutes in between each bite.

1. Why do we need to wait so long?

2. Anyone found something to do in between each bite that has worked? I'm really struggling with this; I'm thinking about starting a craft because it's very hard to sit and look at food for 3 minutes and just pushing my food around with the spoon.

3. Will I always have to wait so long between each bite?

I'm just curious about this because I'm finding that this is my biggest struggle. I have noticed that when I eat too fast that my chest starts burning and I get nauseous.

Thanks for any advice you can give!