Application hangs at FindAll in uia_element_info.py

[travis-1992]

Expected Behavior

Can quickly complete script

Actual Behavior

It will take more than 60 seconds to run FindAll of IUIA().root object

Steps to Reproduce the Problem

1. download and install RingCentral.exe, and login
2. run a python file with code 'Desktop(backend="uia").windows(title="Taskbar")', it will take more than 60 seconds

Short Example of Code to Demonstrate the Problem

from pywinauto import Desktop, mouse, Application, keyboard
import time

startTime = time.time()
elem = Desktop(backend="uia").windows(title="Taskbar")
print("Desktop,window function usedTime: ", time.time() - startTime)

Specifications

• Pywinauto version: 0.6.8
• Python version and bitness: 3.7.7
• Platform and OS: Microsoft Windows 10 Pro