getblock with verbosity level 2. e.g.
getblock 0000000000000000000cedb96c93635edfb2755a3357e7febe5929fb6db1658d 2
This will return the block with all of the transactions already decoded.
Since you mentioned that you are doing
getrawtransaction and then
getrawtransaction has another parameter to decode a transaction for you so you don't have to go to
decoderawtransaction. You can do something like
getrawtransaction 0374d2bab7ce78429dc8660fb0100f260e1528dca4854ca7d761dd849211ff75 true
Lastly, most RPCs have a set of options with a description of what they do and an explanation of the output. You can do something lie
to get the help description. In the future, you can do this for any command that you are using so that you can use it to its fullest potential.