Judging by your calculations, your ATROM blockchain will be ten times faster than all existing blockchains at the moment.
This is incredible speed! 0.027 sec
However, this is not the final speed of the blockchain and in the future it can be increased.
You need to wait for the main network to start to make sure of the speed
Current Crypto Transaction Speeds:
Bitcoin: 66 min
Bitcoin Cash: 58 min
Litecoin: 17 min
Dash 15 min
Ethereum: 2 min
XRP: 4 sec
Even comparing with other blockchains, the speed of 0.027 sec is the best that is at the moment