Why does it take so long for the click() function to be processed when measuring time in Selenium?

Question

Python

Good afternoon!
I began to write a test through a bunch of selenium + python + IE
But a rather strange picture happened - you need to measure the time from the moment you click on the link - until the page is loaded using the link
:

#
        self.elem = self.driver.find_element_by_link_text("Ссылка")
        self.test01 = time.time() #первый вариант
        self.elem.click()
        self.test02 = time.time() # второй вариант
        assert "Страница по ссылке" in self.driver.page_source
        self.test = time.time()
        print(self.test-self.test01) #примерно 4 секунды
        print(self.test-self.test02) #примерно 0.2 секунды

the actual output and the question is the click function that is really processed for almost 3 seconds or am I not understanding something? please explain, perhaps there are more concise means for measuring in this situation

Answer 1

What are you measuring? Why do you need time between pressing and immediately after? Measure at the anchor after pressing.
upd:
By anchor, I meant that it is necessary to stop measuring when you see the element you need on the page.
In this example, the input field for the Question Detail
For example:

from selenium import webdriver
import time
from datetime import datetime
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver.get('https://www.toster.ru')
time.sleep(3)
driver.find_element_by_xpath('//a[@class="btn btn_green btn_add-question"]').click()
time1 = datetime.now()

try:
    element = WebDriverWait(driver, 10).until(
        EC.presence_of_element_located((By.XPATH, "//textarea[@class='field__input textarea']"))
    )
finally:
    time2 = datetime.now()

delta = time2 - time1

print(delta)

>>> 0:00:00.649733