High CPU utilization when using background image
- iTerm2 version: Build 3.3.8
- OS version: macOS Catalina 10.15.3
If I turn on background image in the profile settings, CPU usage skyrockets from ~6% to ~70% and the app becomes much less responsive (has noticeable lag even with simple commands).
I have a 5K iMac and its high resolution might have something to do with the CPU usage, but it doesn't quite explain the order of magnitude difference.
I attach two screenshots, with and without background (they show differences in both the terminal look and corresponding CPU usage as shown by top command), two sample files (with and without background), debuglog.txt and the com.googlecode.iterm2.plist file.