Approaching Entity or Translucid/Transparent Blocks lag

So, when getting near other players, mobs (entities), and translucid blocks drops the game FPS significantly, for example, from 50 FPS to less then 10 by just going inside a player (happens in my device). Another example is glass: In my solo world, my house has glass floor and walls. Just by being inside my base (on top of the glass), which is in the image attached, my fps gets stuck at 20, but when I leave the base, it raises to 50.