Paste is awfully slow

[sayo96]

Type: Bug

I just updated to the latest version of vscode and copy and pasting stuff is super slow! Cmd+v takes a lot of time to just paste one line

VS Code version: Code 1.96.4 (cd4ee3b, 2025-01-16T00:16:19.038Z)
OS version: Darwin arm64 24.3.0
Modes:

System Info

Item	Value
CPUs	Apple M1 Pro (8 x 2400)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	3, 3, 3
Memory (System)	16.00GB (0.07GB free)
Process Argv	--crash-reporter-id 3b70b473-734c-4028-9e9b-11490cfb6164
Screen Reader	no
VM	0%

Extensions (17)

Extension	Author (truncated)	Version
vsc-export	asl	1.2.0
regex	chr	0.5.1
vsc-material-theme	Equ	34.7.9
copilot	Git	1.266.0
vscode-test-explorer	hbe	2.22.1
debugpy	ms-	2025.0.0
python	ms-	2025.0.0
vscode-pylance	ms-	2025.2.1
jupyter-renderers	ms-	1.1.0
vscode-jupyter-slideshow	ms-	0.1.6
remote-explorer	ms-	0.4.3
remote-server	ms-	1.5.2
test-adapter-converter	ms-	0.2.1
vscode-yaml	red	1.15.0
synthwave-vscode	Rob	0.1.17
pdf	tom	1.2.2
material-theme	zhu	3.18.0

(2 theme extensions excluded)

A/B Experiments

vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805cf:30301675
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
vscaat:30438848
c4g48928:30535728
azure-dev_surveyone:30548225
vscrp:30673768
962ge761:30959799
h48ei257:31000450
pythontbext0:30879054
cppperfnew:31000557
dwnewjupyter:31046869
nativerepl2:31139839
pythonrstrctxt:31112756
nativeloc2:31192216
iacca1:31171482
5fd0e150:31155592
dwcopilot:31170013
stablechunks:31184530
6074i472:31201624
dwoutputs:31233690
9064b325:31222308
copilot_t_ci:31222730
jda6j935:31233686

[vs-code-engineering]

Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.97.0. Please try upgrading to the latest version and checking whether this issue remains.

Happy Coding!

[albertosantini]

Maybe this #238609

[gjsjohnmurray]

More likely to be #235959

[sayo96]

Nothing mentioned there has fixed it on my local.

[mjbvz]

Does this reproduce in the latest VS Code insiders build with all extensions disabled?

[vs-code-engineering]

This issue has been closed automatically because it needs more information and has not had recent activity. See also our issue reporting guidelines.

Happy Coding!

[gjsjohnmurray]

Please run the Profiles: Create a Temporary Profile command from Command Palette and then test again.

[ablesea]

Please run the Profiles: Create a Temporary Profile command from Command Palette and then test again.

This works for me.

This comment also works for me:
#235959 (comment)

Maybe there is a python version of this fix?

[sayo96]

Sadly that doesn't work for me

[sayo96]

@gjsjohnmurray That doesnot fix my issues. Is there any alternative ways to fix this?

[gjsjohnmurray]

@sayo96 I'm not a member of the core team. Pinging @mjbvz who is.

[sayo96]

Thanks!

[mjbvz]

/gifPlease

[vs-code-engineering]

Thanks for reporting this issue! Unfortunately, it's hard for us to understand what issue you're seeing. Please help us out by providing a screen recording showing exactly what isn't working as expected. While we can work with most standard formats, .gif files are preferred as they are displayed inline on GitHub. You may find https://gifcap.dev helpful as a browser-based gif recording tool.

If the issue depends on keyboard input, you can help us by enabling screencast mode for the recording (Developer: Toggle Screencast Mode in the command palette). Lastly, please attach this file via the GitHub web interface as emailed responses will strip files out from the issue.

Happy coding!

[gjsjohnmurray]

@sayo96 what language are you coding?

Also, please confirm that the problem even occurs after you create a temporary profile and only add the two settings mentioned in #235959 (comment)

Assuming you are using Javascript or Typescript, that same comment from @mjbvz gives further diagnostic steps to follow.

I'm positive even a junior could have caught this simple bug during a QA session.

Without a repro I doubt this. For example the entire VS Code team uses VS Code to build VS Code. They routinely perform the steps you gave above which you say reproduces the bug. They would not tolerate the behaviour you describe.

[gjsjohnmurray]

When we pay for a product, we expect it to be flawless.

How much are you and your team paying for using VS Code? And to whom?

[albertosantini]

When you comment out a single, it's not getting commented out

@sayo There is something weird, if this doesn't work, apart the pasting.

So you tried with extensions disabled, and this ^ doesn't work.

[mjbvz]

We can't investigate if you can't provide a specific way to reproduce the issue or even a screen recording showing the details of the issue. Please direct your passion about the issue into helping out instead of just complaining about it