Huge file output in pyqt5 window?

Question

Python

there are logs of 50GB in size, sometimes you need to find a specific place in the log by date. in python, a binary search finds the right place, I leave a pointer there and read the file from that place. I want to make a visualization so that the window displays and you can scroll down the text without delay, on pyqt5 the text will be displayed in QTextEdit, or is there a better solution?