When I create a new game with this mod enabled, the game experiences periodic stutters every few seconds, with the framerate dropping from 60 to around 20 and then returning to normal. When I disable this mod, everything runs smoothly.

I also tested by disabling all other mods and leaving only this mod enabled, and the issue still occurs.

Interestingly, I have another save where this mod was not enabled at the creation of the game. When I add this mod to that save, there are no stutters at all, and the mod functions correctly (except for the character selection feature).

After further testing, I found that enabling only this mod does not cause the stuttering issue. The problem occurs when this mod is enabled together with multiple other mods, causing the game to periodically stutter every few seconds, with framerate dropping from 60 to around 20 and then recovering.

I have not yet determined which combination of mods triggers this issue. Currently, the only way to play smoothly is to disable this mod.

Interesting find you've got there, thanks for pointing this out.

The issue has to do with few old on_nth_tick functions, that periodically scan entire surfaces, rather than saving it to a table and using it for later reference. I was able to figure this out by testing it on my Space age save where the update went from around 2.9 to 4.0 (using the "show-time-usage" debug feature). I myself did not really feel this because I mainly test vanilla and to a degree space age.

I can optimize it. If you have found the mod combination that causes this, it would be very helpful.

Also are you using the ingame "show-fps" debug feature (that shows both fps and ups)? Just curious.
Lastly can you tell me more about the "character selection feature" not working?

Thank you for the response!I already enabled the in-game “show FPS” feature, which is how I noticed that the frame rate suddenly drops. After further testing, I still haven’t confirmed which mod combination is causing the issue. The main large mods I have enabled are the Space Exploration DLC and YouKi Industry.

Regarding the character selection feature: it does not work in a save that was created without this mod enabled, but it works normally when creating a new save with the mod enabled from the beginning.

Version 1.6.5 is out.

Experimental beacons and annihilators now use persistent storage tables. This now keeps track of them and thus no longer need for full surface scan.
Furthermore, few additional tweaks have been made alongside with a runtime setting option that will reduce the update rate.

About the character selection feature, now it pops up when loading a save with this mod for first time. But bear in mind that this might have some side effects regarding player inventory. Additionally you can change your character at any time using the "choose-character" command (while it being a debug feature, it can be accessed at any time*)

If you come across further issues (or new ones) then don't hesitate to contact me about em.

* while not in editor nor in map view