To run chrome-headless just add --headless via chrome_options.add_argument, e.g.:
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
chrome_options = Options()
#chrome_options.add_argument("--disable-extensions")
#chrome_options.add_argument("--disable-gpu")
#chrome_options.add_argument("--no-sandbox") # linux only
chrome_options.add_argument("--headless")
# chrome_options.headless = True # also works
driver = webdriver.Chrome(options=chrome_options)
start_url = "https://duckgo.com"
driver.get(start_url)
print(driver.page_source.encode("utf-8"))
# b'<!DOCTYPE html><html xmlns="http://www....
driver.quit()
So my thought is that running it with headless chrome would make my script faster.
Try using chrome options like --disable-extensions or --disable-gpu and benchmark it, but I wouldn't count with substantial improvement.
References: headless-chrome