# Shapr3d runs very slow on PC and Ipad after parametric update

**URL:** <https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664>\
**Category:** Modeling Questions\
**Created:** [May 3, 2024, 4:12am UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664 "2024-05-03T04:12:14Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![Terbaik](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/terbaik/32/25966_2.png) [@Terbaik](https://discourse.shapr3d.com/u/Terbaik)\
**Post date:** [May 3, 2024, 4:12am UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/1 "2024-05-03T04:12:14Z")

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Shapr3d runs very slow and lagging on my PC and Ipad. Even to draw a line, it takes a while to process. Is this due to the history saving process at each step? Or a bug?

PC: Ryzen 7 5700x, 64GB ram, RTX 4060Ti 8GB  
iPad pro M2 11"

This screen is from my PC, on Ipad is also the same:

Usually designs like this are only 30MB in size but now they are 100MB in size. This is a medium difficulty design, but Shapr3d is very slow to process. I can’t imagine making a more complex designs like before Parametric update.

I also found something weird:

1. After force closing the app, the design is not saved automatically like in previous versions. There are some steps that have not been saved. But the Autogenerated Backup folder appears containing complete files, exactly the same as they were after forcing the application to close. Is this also part of the History feature? Autogenerated Backup obviously doubles the file size, does this also affect Shapr3d’s performance?

2. The subtract tool is acting strange, when I set it to keep original file ON, it always goes back to OFF. I didn’t even realize I lost an important body because of this.

I hope there is a button to unlink sketch from body soon.

Thanks

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**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [May 3, 2024, 4:38am UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/2 "2024-05-03T04:38:09Z")

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Let me search for you 🤣

> [@Terbaik](#):
>
> Shapr3d runs very slow and lagging on my PC and Ipad.

> [@Improvements to parametric modeling](https://discourse.shapr3d.com/t/improvements-to-parametric-modeling/31577):
>
> Based on your feedback, we’ll look into improving the following behaviors. The way move/copy works. We’ll revisit some of the changes that were introduced with this release. Most likely we won’t roll it back completely, but we’ll look into how to improve it. We’ll add an option to collapse the history, and remove all the dependencies. After the collapse, the history will be recorded again, but whenever you want to discard the parametric relationships, you’ll be able to do so. Performance issue…

> [@Terbaik](#):
>
> But the Autogenerated Backup folder appears containing complete files, exactly the same as they were after forcing the application to close.

> [@Improvements to parametric modeling](https://discourse.shapr3d.com/t/improvements-to-parametric-modeling/31577/27):
>
> We’ve found an issue that might cause performance issues for some users. Based on our current understanding it should impact only a couple hundred users, but if you are working with larger assemblies (5k+ parts), this might help a bit if you are experiencing slowdowns. In some cases, Shapr3D automatically generates a hidden folder in the Items menu, called BACKUP\_\_AUTOGENERATED. This increases the number of parts in your workspace, so if you work with 5k parts, you might end up with an addition…

> [@Terbaik](#):
>
> The subtract tool is acting strange, when I set it to keep original file ON, it always goes back to OFF. I didn’t even realize I lost an important body because of this.

> [@New Subtract bug](https://discourse.shapr3d.com/t/new-subtract-bug/31658):
>
> For whatever reason, Subtract reverts to None every time I access it. I want to remain on"-Removed Bodies" just like it used to. iPad Pro, app version 5.601.0.6803

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**Author:** ![Justin074](https://avatars.discourse-cdn.com/v4/letter/j/e95f7d/32.png) [@Justin074](https://discourse.shapr3d.com/u/Justin074)\
**Post date:** [May 3, 2024, 5:18am UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/3 "2024-05-03T05:18:49Z")

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I have that same lagging performance with sketching as you do in your video. I’m on Mac though.

I didn’t have the Autogenerated Backup folder though in my project though.

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**Author:** ![aqkhana2002](https://avatars.discourse-cdn.com/v4/letter/a/45deac/32.png) [@aqkhana2002](https://discourse.shapr3d.com/u/aqkhana2002)\
**Post date:** [May 18, 2024, 2:54am UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/4 "2024-05-18T02:54:32Z")

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I have same issue with latest update and my 2023 iPad is struggling to work

[![](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/d/f/dfaac1bc48118b8f824b83ae6d40f214fa93e9c6.jpeg "Shapr3d is no more a good product") ](https://www.youtube.com/watch?v=gdbVZ5HSruY)

[![](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/f/6/f6958a54c006638d040795b5b24c7a5dd9053f7e.jpeg "Shapr3d 2024 loading file .. go sleep come back may be loaded") ](https://www.youtube.com/watch?v=odyGgVd43v8)

[![](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/4/3/437bfe482c31976fee7f029c7318ed43443dd0cd.jpeg "Shapr3d 2024 useless product too slow") ](https://www.youtube.com/watch?v=jcwj1x7xxmQ)

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**Author:** ![Shaun](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/shaun/32/18786_2.png) [@Shaun](https://discourse.shapr3d.com/u/Shaun)\
**Post date:** [May 18, 2024, 12:48pm UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/5 "2024-05-18T12:48:55Z")

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That last file with only 19 bodies ☹

I’d recommend you send this file into the Shapr team and see if they can fix it.

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**Author:** ![Terbaik](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/terbaik/32/25966_2.png) [@Terbaik](https://discourse.shapr3d.com/u/Terbaik)\
**Post date:** [May 18, 2024, 6:12pm UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/6 "2024-05-18T18:12:30Z")

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I even lost my designs after parametric update, it always force closes after I want to open the file. I have sent them the file. I hope they can fix it because the progress is already 90%. I feel insecure with auto backup not working like before.

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**Author:** ![Shaun](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/shaun/32/18786_2.png) [@Shaun](https://discourse.shapr3d.com/u/Shaun)\
**Post date:** [May 18, 2024, 11:43pm UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/7 "2024-05-18T23:43:32Z")

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> [@Terbaik](#):
>
> it always force closes after I want to open the file.

This has happened to me twice. The first one they were able to send me a fixed version of the project back and the second I was told that they were fixing the problem with an update.

The thing about the second one though, it was just crashing on my Windows laptop but I was able to open it on my iPad.

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**Author:** ![Dragoon6](https://avatars.discourse-cdn.com/v4/letter/d/a88e4f/32.png) [@Dragoon6](https://discourse.shapr3d.com/u/Dragoon6)\
**Post date:** [April 9, 2025, 6:08pm UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/8 "2025-04-09T18:08:23Z")

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I’m having this issue now! every time I do anything it stops and loads. has there been a fix for this?

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<div class="post-metadata">

**Author:** ![Terbaik](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/terbaik/32/25966_2.png) [@Terbaik](https://discourse.shapr3d.com/u/Terbaik)\
**Post date:** [April 22, 2025, 5:10am UTC](https://discourse.shapr3d.com/t/shapr3d-runs-very-slow-on-pc-and-ipad-after-parametric-update/31664/9 "2025-04-22T05:10:10Z")

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I think it hasn’t been fixed yet, It still happen to me as well after adding about 100 new sketch. Even after a year of parametric update it still happens. So, I have to export it into xt format then reopen it just to delete the previous history. For my complex projects can do like 30 times of export and reopen just to make it runs smoothly haha