The sentence is not standard language.
This is country dialect.
In standard language:
실제로 보면 비슷해, 느는 건 찍는 실력이 늘어날 뿐이야.
In English:
Actually look these are similar, improved ability is only a random selection skill
실제로 보면: Actually look
비슷해: similar
느는 건/ 느는 것은(= 늘어난 능력은): improved ability
찍는 실력: a random selection skill
I hope the sentence is right. :D