I don’t use sublime in my day to day, but always keep it on hand because it’s the only IDE that quickly opens for viewing very large csv or similar files without a hitch. PyCharm, VSCode, Aton all barf under these conditions.
How big of a file are we talking? I've had to open multi-gig Maya ASCII flies before to find broken nodes and Sublime was always my go to solution. Scrolling performance takes a hit, and the file can take some time to open, but overall works reasonably well.