Lag With Lots of Mods Installed

[Narry]

Had over 80 mods installed and game would lag whenever I gibbed an enemy or if there were a lot a particles on screen. I went through and disabled various mods, but found out performance would degrade as more mods were enabled. This needs to be addressed, as I quite like adding random items and enemies into rotation.

[Asandir]

https://www.reddit.com/r/themoddingofisaac/comments/5p8p0z/increasing_choppy_fps_for_each_mod_enabled_in_the/

https://www.reddit.com/r/themoddingofisaac/comments/5on7s4/any_way_to_increase_framerate_with_mods_enabled/

Some insight on it. Basically, LUA is a slower language than C++(which Isaac is programmed in) , additionally right now modders have to do ineffecient callbacks (scanning the whole screen for entities) which results in this lag.
Until better callbacks are implented, you won't get a fix apart from just playing with few mods, which is not a good solution.

Personally I stopped playing with mods for now because the current situation creates lag that I can't stand.

[Narry]

Originally posted by Asandir:

https://www.reddit.com/r/themoddingofisaac/comments/5p8p0z/increasing_choppy_fps_for_each_mod_enabled_in_the/

https://www.reddit.com/r/themoddingofisaac/comments/5on7s4/any_way_to_increase_framerate_with_mods_enabled/

Some insight on it. Basically, LUA is a slower language than C++(which Isaac is programmed in) , additionally right now modders have to do ineffecient callbacks (scanning the whole screen for entities) which results in this lag.
Until better callbacks are implented, you won't get a fix apart from just playing with few mods, which is not a good solution.

Personally I stopped playing with mods for now because the current situation creates lag that I can't stand.

Thanks for the answer, very insightful. Hope this gets fixed soon.

[SLIME-CRAFTER ©]

Update: It never did.

[Newgel]

Update: And it never will

[Shady]

Update: It never did in 2022.

[garlic_muncher_93]

I mean what mods are you playing with besides the one that tells you what items do

[Bardо́lvan]

Originally posted by Giuseppe Cardinale-Mancini-Pesci:

I mean what mods are you playing with besides the one that tells you what items do

Fiend Folio and a ♥♥♥♥ ton of joke mods, just as everybody else

[ElGokú]

Update: 2023 and still no fix

[Hamburgaga]

Hello there ,i might have found a fix, most mods dont make ur game lag (i have a TON of mods with 500+ enemies and items) the only mod that made my game lag like hell was the 700000items mod, if u have that try disabling it and see if all the other mods run fine together

[Danizk0]

wow, great fix

[alexsssi]

Update: 2024 Repentagon now exists and improves and does a bunch of stuff for modding that should improve performance. Someone come back in 2025 and tell us if people are gonna actually optimize their mods with it in mind

[Newgel]

Originally posted by alexsssi:

Update: 2024 Repentagon now exists and improves and does a bunch of stuff for modding that should improve performance. Someone come back in 2025 and tell us if people are gonna actually optimize their mods with it in mind

Thanks for the reminder, it's working good now

[SwO0dy]

I've came looking for a solution to a 2017 post to end up still being with problem in 2024

[TDash]

I have 170 mods (and Repentogon), unfortunately Repentogon by itself doesn't seem to be doing much.

[Devil5246]

2025 year, lag as hell with Repentance Plus and FUTURE.