Small ships vs large ships (buff/nerf)

[Mighty Brankor]

I like it to see if we use ships in different size better in game but actually.
As an excample:
A 4-slot ship in iron/titan got 18k HP  The same ship xanion/ogonite got 110k HP

In the barrier this ship died alone or in a fleet very fast by other enemies with there 20k+ weapons.

My suggestion:
smaller ship got a Buff to get harder to hit. 

My suggestion: 4-slot ship vs 13-slot ship     
The 13 slot ship get -1% on all weapon for each 2 slot above the smaller ship

Railgun. Hit rate 99.8%    13-slot ship shoot on the 4-slot ship. The different is 9 (8=4%) 
The hit rate is now 95,8%  

Maybe it is not many, but it give some smaller ship and make it not annoying to fight smaller ship