Fleet size: some personal experience (Stellaris)

People, I would like to write about how to properly create a fleet.
Well, I think that everyone has already understood that it is necessary to observe proportions: and to create 10 corvettes per battleship ...

But the main thing is that do not make the fleet large. I created a fleet of 20 battleships, 100 corvettes and 30 cruisers ...
And the game started to lag. And the fleet itself simply did not attack anyone - it demolished one building in real time.