Hello Dave, welcome to this forum!
Always a good idea!
essentially babies…
Nobody can do that.
Despite of Linux being very efficient with resources, you cannot expect miracles. You won’t get the sleek performance of a modern computer.
For starters, I would recommend you to watch the following video by a wonderful English gentleman:
Perhaps you can try out some of the options he presents and tell us about your experience. Obviously, you’re always kindly invited to ask any questions arising in the process and during use.
Best
Mina