- Optimize generting random files. - Reduce big file of 128MiB to 32MiB (git was never made for large files anyways, but simply tests that it works). - Reduce looped git operations from 100 iterations to 10. - Add extra print statements to know what a slow test is doing, this also helps to see if a particular piece of code in a slow test is the culprit or if the test is just very extensive. - Set `[ui.notification].EVENT_SOURCE_UPDATE_TIME` to 1s to speed up `TestEventSourceManagerRun`. - Sneaked in some general test improvements.