onur thank you very much for your comment!
This project was never meant to be played on phones, tablets, or laptops. It is my graduate project for my University and was made basically within 3 months, all by my self, and it is by all means very unoptimized. Back then, I was very lucky to discover Construct 2 and a childhood dream came true (creating an interactive tale), but knowing next to nothing about programming, software and hardware shortcomings, made choose some unwise things performance-wise. My only guide and standard was my 5 year old mid-high range gaming rig and I was adding/removing stuff in relation to it. If I had more time and knowledge, I would had many things optimized and simplified.
You are right pointing me this performance issue, thank you