Original Post is too lacking of information. Currently it basically reads:

1. I like Mch

2. My a3s static group kicked me for low dps

3. Therefore, mch dps must be low and it needs buff

You assume from these statements that it can't be you who is doing something wrong, it must be the dev team.

What are you parsing in comparison to, for example, other machinists who uploaded their info to fflogs? For example, from looking at that site your recorded kills from A1S aren't near the top, or the 75th percentile, or the average 50th percentile, or the 25th percentile. So if you took that same performance into a3s, then it provides some insight as to why they chose to kick you. If you took that same performance in a3s considering that there are significantly more mechanics and dps checks to deal with compared to a1s, your dps is probably lower than a1s.

You are leaving out information.