I start playing a new survival world since 1.14 was released. The world has no problems when I start it but when I continue building my house I start to experience these fps drops. 

I'm not sure what causes this because there are some blocks (or areas) that breaks and places normal without the fps drop I don't think this is about how much I have builded in my world because I have played many survival world and this is the only version I experiment fps drop.

(also I think it was my texture pack but this happens too with the vanilla textures)

Videos: 
https://youtu.be/9x_L3JkjGdo
https://youtu.be/2V0irOFrElg