Why are my planes that stupid

[Aufricer]

Hello everybody,

any hints on why enemy planes are

constantly attacking and hitting my CV or main BB on first chance

while my own planes seem to attack mainly DD or well protected CA + barely do a hit.
Enemy is attacking with like 5 to 8 planes, interception does not do well and its like 2 bomb hits or torpedoes.
My own wave of 10 to 15 planes is attacking while 3 to 8 are damaged or shoot down.

I have send my waves to the reported enemy carrier group (like 5 CV, 3 CVL, small ships). Priority target is CV as well.

I wonder if it is realy bad RNG or if it has to do with status of training etc. War is fresh, crew quality is -1 or -2 and half of the ships came from WU status, thus even the CVs only have a 60 % to 80 % plane strenght.
My fighters lack 5 years behind as the newest fighter is still rolling out (4:1 old vs new fighters).

I am open to advice on how to improve.

By the way in the OB tab behind some ship names I find an 1S or 2S. The manual says M is for mines, but what could S be ?