Hi Alex thanks for the explanation
yes I perceived wrong, I retested and the invisible block that I mentioned above doesnt effect that much the loading time.👍
The profiler results tricking me are as below,

1. What is the meaning of that X.X E-5sec, how shall we evaluate it?

2. The SQL query number of the logged in home page is changing from 4000 + to 15000+ queries which triples the loading time, I couldn't catch if a module is doing this, but is this normal or I should check more deeply?

PS: Later I found that the multifunctional create post block is creating the 10000+mysql queries.