Save/Load menu is laggy, renpy keeps rebuilding the page

[Merlyn_LeRoy]

I have fairly complex save/load screens, and this only happens some of the time, other times there's no lag.

While mousing around a save/load screen, the screen will lag every few seconds. I've found this is caused by renpy re-calling the screen routine to construct the page again, which takes about 2 seconds (depending on how many files currently exist). This makes the screen non-responsive for those two seconds.

But this doesn't always happen. It seems to go away for a bit if I clear out the save folders & cache, but comes back. I've tried using a plain black background in case renpy was refreshing because of a BG image, but no difference.

Is there something specific that can trigger this? I can try to work around this if so...

[PyTom]

It's hard to say. It's certainly possible if your save and load screens are so complex that Ren'Py can't optimize them. I'd suggest looking at simplifying things.

[Merlyn_LeRoy]

Pytom -- saw your twitter message (https://twitter.com/renpytom/status/952405982126202880) via another member, this is for Missing Stars. I'll try removing all the persistent saves and see if that fixes it. I'll followup later, thanks for the info.

[Merlyn_LeRoy]

Great, that seems to fix it. All the save_persistent() calls were the problem...