SQL Server always running
As usual in these cases, &quot;It depends&quot;.
Depends, as a minumum, on:

How performant is your PC in general (especially: how much RAM, how many CPUs, are your disks SSD, etc).
How often do you practice with SQL Server.

Personally, I have a situation like yours and I don't feel any kind of slowness. Starting/stopping services can be boring when you are in a hurry, but if there are situations in which you need &quot;all the power&quot; of your PC, you can safely stop or pause SQL Server related services: it is not a DB server, then you know when you can stop it.
An idea could be to make a script to stop/start all SQL related services.