Trickplay Scheduled Task

[Checkerknight]

Have a question regarding Trickplay. I just recently enabled it on my server, went through the first day and a half of having it scan and create images and everything is fine and dandy. 
What I'm curious about is why is this a scheduled task? I understand that new files added would have to be scanned and generated, but for old files why would the task go though those again? I have them set to save in the media folders so it's not as if they are missing. 
Trickplay generation is currently running very slowly again and bogging down my sever, but no no content has been added. Is there a configuration step I have missed, or is this the intended behavior.

[Checkerknight]

Well, replying 10min after posting 😅
The trickplay lasted for about 30min total, but I guess the question would now be, is there a way to have trickplay generation be triggered ONLY when new media is added/library scan?

[theguymadmax]

Generating trickplays can be a long, resource-intensive task, so it’s best scheduled for times when server activity is low. You can adjust this setting in the Library: Extract trickplay images during the library scan.

   

[Checkerknight]

Generating trickplays can be a long, resource-intensive task, so it’s best scheduled for times when server activity is low. You can adjust this setting in the Library: Extract trickplay images during the library scan.

I noticed that, I ended up just removing the scheduled task. Was curious why it took 30min to check for updated files I guess. I get it takes forever, but they were already generated, so I wasn't sure why it took so long to verify essentially