I cant reproduce this. I do wish though that the style of the popup was more inline with Windows 11.
Core i5 10th gen
1660Super
32gb RAM
I enabled On-Type Autocomplete again, and although the autocomplete is slow to pop up, I no longer have the issue of my typing lagging while in the script editor.
Codes that go over 10k should be separated into different scripts.
Just that it’s a module, doesn’t mean it can’t use another module.
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I never know you can disable certain features to reduce the lags for auto-complete. It quite fixed it as I don’t use some of its features.
Codes that go over 10k should be separated into different scripts.
I do agree with you but the previous autocomplete version was less laggy and it handles my 10k codes without any delays.
Removed all these and the lags are gone, it’s probably the “Script Analysis”. That thing is useful but currently it’s lagging large-scale scripts so yeah.
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Looks like disabling script analysis also disables analyzation for errors in my code. (For example, functions used that does not exist doesn’t highlight it as red anymore) (Like the one below)
For a temporary fix, may the engineers add a way to disable certain analyzations such as these?
Analyzation for pair loops:
Analyzation for any other built-in APIs:
Analyzation for functions:
While these things are very useful, especially for scripters that just began their journey, they certainly do have a huge impact on large-scale scripts. Like I’ve said before, the 10K lines of code script (refer to the script I gave to the engineer’s team) have not lagged before until the update began. When I removed Script Analysis only, I was able to code without any lags at all in my 10K lines of code script and I am certainly sure these new features are the one that lags them whole.
EDITED:
Nevermind what I just said, looks like really disabling everything besides Script Analysis here really solves it.
Studio Settings > Script Editor
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Just use VSC or Sublime Text, your only torturing yourself.
I’ll consider this as an option but I’d like to add more details before I depart from using the script editor, will definitely be back after this issue is resolved.
While removing the other options above, it removes the “adding lines” delays.
It does not solve the typing lags/delays that I am experiencing, now I had to disable the script analysis as well which is a useful one w/ my workflow. When I have disabled it, no lags are occurring to my now 10k lines of codes.
AGAIN, CLARIFYING THAT THE PREVIOUS SCRIPT EDITOR DOES NOT HAVE THE ISSUES I AM EXPERIENCING RIGHT NOW WITH MY SCRIPTS BEFORE.
This is happening in our game Robloxian High School. We have a good amount of larger scripts. Doing anything related to scripting causes frame drops still (opening script, new line, selection, deleting text, using find, etc).
These are my current editor settings
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My script editor already lags at around 300 lines too. Performance gets worse quicker on lower-end devices. I had to cope with it 
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Hello. I’m still experiencing this problem since the release of the new autocomplete system
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I have this issue, I have modularized my code very well, so no script is very large in itself.
It’ll freeze quite a bit while writing code.
Example is pressing enter it freezes for a few seconds
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This is affecting me as well, the only workaround is to disable autocomplete while working on larger scripts. Disabling Script Analysis alone doesn’t fix it.
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Same. Still has a major impact on productivity. Either use auto complete and have frame drops, or turn auto complete off and spend your time memorizing all functions and variable names. Neither are preferable 
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I’ve been getting this exact issue for what seems to be 2 days now. Projects with around the minimum of 5k lines or more cause major lag spikes, freezes, and rarely (but still there), crashes. One of my friends lost an entire project due to Roblox Studio hanging and crashing because of this.
I was forwarded this thread by a dev relations team member, And I’m glad that this issue is being brought up.
Hopefully, this gets fixed soon, As like how Usering said - It’s a massive impact on productivity.
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Update, This seems to be an issue to specific scripts, some of my modules won’t lag when programming, and others will, and i narrowed it down to require. Guessing it has something to do with script analysis. Here is a video showing its something to do with require
You can see it take a moment for the color to show properly compared in both scenarios
This issue is happening to me, is there any fix?
I don’t have an answer unfortunately, but for the sake of engineering, when did this start happening for you?
I don’t really have a specific date but I’d say it’s been happening over the past weeks now.
I am also experiencing issues with the Auto-Complete.
Here is a reply I made to a discussion post that discusses this issue:
https://devforum.roblox.com/t/anyone-else-noticing-a-huge-performance-issue-in-studio/2002568/31?u=focasds
I just noticed you are the same staff I replied too last time…