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Hello,
I installed new VS 2022 Preview 17.0.0 Preview 3.1 and I'm working on a Blazor Hosted WebAssembly project.
This project was previously created with VS 2019 Preview 16.11 preview 1.
All is fine except for Intellisense on Blazor Components.
On VS 2019 reaction of Intellisense is around 1 seconds and on VS 2022 it take from 20 to 45 seconds, so cannot work.
Some tips ?
Thank you
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(0, 9%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECD%3C/text%3E%3C/svg%3E)
Hi @piercarlo schiavo ,
At present, the VS community does not seem to have any problems with ntellisense very slow in 2022 17.0.0 Preview 3.1. You can provide them with an ETL trace file according to their statement so that they can conduct further research:
1.Please follow the instructions below, especially "Provide a trace and heap dump" section to record the issue you are experiencing.
2.How to report a problem with Visual Studio or Visual Studio Installer
3.The recorded files can be found under %TEMP%\Microsoft\VSFeedbackCollector.
4.Upload these files to this feedback by replying and inserting the files using the insert (attach) button.
I done it.
I sent a feedback with a registration of problem and some logs files yesterday.
Waiting for Feedback answer.
Bye
Piercarlo
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(32, 14.000000000000002%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMM%3C/text%3E%3C/svg%3E)
bump...VS 2022 Enterprise latest preview. Intellisense is unbearably slow.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 86%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDW%3C/text%3E%3C/svg%3E)
It's even worse now in 2022 RC! I was using Preview 4 and actually starting to love it. Then I updated to RC and it's basically unusable now.
I'll probably submit feedback but I really hope it's not just me. I'm on a Ryzen Threadripper 2950X with 32GB RAM. If VS doesn't scream on this hardware then there's no hope.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 64%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERD%3C/text%3E%3C/svg%3E)
I wasn't having intellisense issues exactly, but suggestions/find references/go to definition was all going incredibly slow for days (VS 2022 17.1.0).
I finally disabled everything related to intellicode and everything is back to normal. I think it's specifically related to the model training, but I disabled everything to be sure.
hi everyone. I have the exact same issue with IntelliSense being extremely slow in the latest preview of 2022..net six latest preview. I will submit feedback just like the above recommended. If it helps, it’s a blazer web assembly standalone application. i’ve noticed the slow down in razor pages specifically.
hope that helps, I will submit feedback via the above mechanism to help further resolve.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(185.6, 60%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGK%3C/text%3E%3C/svg%3E)
I concur. VS 2022 intellisense is too slow and affecting my productivity, mainly in Blazor.NET project. I have 16G RAM and 3Ghz 8 Cores. VS2019 was fast on the same machine. I too have submitted the feedback. I also saw that the VS 2022 reported that the Intellisense extension crashed/had issues and suggested to remove or disable it
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(16, 38%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBJ%3C/text%3E%3C/svg%3E)
Same thing with me and my server has 24 GB of ram. The development is much faster on VS2019. And it is not only only intelisense, the HotReload sometimes takes forever.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(204.8, 79%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKP%3C/text%3E%3C/svg%3E)
Same, working with Blazor. It gets slow to the point when the VS just freezes forever and processors shows devenv and roslyn take all the CPU.
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I am having this issue with the final release. I have to exit and come back in to VS over and over again.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(131.20000000000002, 94%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
Experiencing the same behavior on new server-side Blazor project release version of VS22. Very SLOW, most times when in the markup file (.razor). Used to be slow in VS19, but only 1-2 seconds, now, it takes 20-30 seconds to load the intellisense after typing the "." in syntax for example.
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Having same slow issue with intellisense,intelligence,, etc. I have reinstalled VS 2022 17.0.1, removed extensions, and any other suggestion but nothing helps. My computer is beefy but ide just eats up over 8Mb of memory and 100% OF CPU.
Also wanted to add, the intellisense for .css attributes seems very broken as well in .razor files at least. It seems to randomly work, but as soon as I type a dash (for example - bootstrap class names), it will start over with intellisense, and show me everything with a dash, instead of only the items that start with what I've already typed.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(3.2, 49%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
i have the same issues, with css and intellisense also with the auto indentation, workin with it is very slow :(
a another issue is sometimes the cursor jups to a row before without doing anything
Version is Enterprise 2022 64bit - 17.0.2
The upper right corner of Visual Studio should have a "Send Feedback" button. That's where you can send issues found with preview version or any bug.
