Transparent part is lowering fps when looking through it

  • What are you attempting to achieve?
    I’m trying to make stable FPS without removing part
  • What is the issue?
    When my camera is looking through transparent part (no point 0 or 1 transparent) my FPS lowering from 40 to 25+
  • What solutions have you tried so far?
    I tried to do full transparent (0 transparency), resizing part

Here’s example