Is it recommended to keep the lines
inside the try catch to bare minimum?
No. Can’t imagine how you could think that the length of a try
block or indeed of any block can have any impact on performance.
Does the code inside the try clause
run slower or cause any performance
hit?.
No.
As you observed, exceptions only incur performance costs when thrown.
If you’re concerned about ‘try’ performance, surely the thing to do is keep the code inside to a maximum?