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paste code is very very slow #1437

@msatlow

Description

@msatlow

Type: Bug

paste code from clippboard takes several seconds. CPU utilisation is 100%. Even if i copy some text into a string. No matter how much characters I'm pasting (e.g. only a single word). Typing code is working normally.

Extension version: 0.29.2
VS Code version: Code 1.101.0 (dfaf44141ea9deb3b4096f7cd6d24e00c147a4b1, 2025-06-11T15:00:50.123Z)
OS version: Linux x64 5.15.0-141-generic snap
Modes:

System Info
Item Value
CPUs Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz (16 x 3502)
GPU Status 2d_canvas: unavailable_software
canvas_oop_rasterization: disabled_off
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: disabled_software
multiple_raster_threads: enabled_on
opengl: disabled_off
rasterization: disabled_software
raw_draw: disabled_off_ok
skia_graphite: disabled_off
video_decode: disabled_software
video_encode: disabled_software
vulkan: disabled_off
webgl: unavailable_software
webgl2: unavailable_software
webgpu: disabled_off
webnn: unavailable_software
Load (avg) 5, 5, 3
Memory (System) 30.98GB (16.64GB free)
Process Argv --no-sandbox . --crash-reporter-id bdf382fa-aeb6-4670-a0db-fb873fe83c33
Screen Reader no
VM 0%
DESKTOP_SESSION ubuntu
XDG_CURRENT_DESKTOP Unity
XDG_SESSION_DESKTOP ubuntu
XDG_SESSION_TYPE x11
A/B Experiments
vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805cf:30301675
binariesv615:30325510
c4g48928:30535728
azure-dev_surveyone:30548225
2i9eh265:30646982
962ge761:30959799
2e7ec940:31000449
pythontbext0:30879054
cppperfnew:31000557
dwnewjupytercf:31046870
pythonrstrctxt:31112756
nativeloc1:31192215
5fd0e150:31155592
dwcopilot:31170013
6074i472:31201624
dwoutputs:31242946
customenabled:31248079
9064b325:31222308
copilot_t_ci:31222730
e5gg6876:31282496
pythoneinst12:31285622
bgtreat:31268568
4gafe986:31271826
c7cif404:31314491
pythonpulldiagcf:31325931
996jf627:31283433
pythonrdcb7:31303018
usemplatestapi:31297334
0aa6g176:31307128
7bj51361:31289155
747dc170:31275177
6518g693:31325878
aj953862:31281341
generatesymbolt:31295002
convertfstringf:31295003
pylancequickfixt:31329274
convertlamdaf:31329270
jhi8h917:31332231
i851h500:31332225
useunpkg:31331645
4f60g487:31327383

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