The NiFi textual search on all the components in the canvas has some big issues
The searching refreshes every time you type in a new letter, since the NiFi canvas can get very big quickly, the searching takes up a lot of time and resources. I had more then a few times where i typed in 2 letters and made my chrome tab crash. I had to resort to typing what i want to search in a notepad and copying it to to search box to avoid it searching every time i type in a new letter.
I think it can be resolved by better textual indexing or potentially making the search box do an "on demand" search, where the user clicks the search button or the enter key to start the search.