After updating to Visual Studio Code version 1.134, the software became noticeably laggy.

Type: Bug

After updating Visual Studio Code to version 1.134, the software is noticeably sluggish, and the GitHub Copilot extension is also very laggy—nowhere near as smooth as it used to be. It is clear that this issue arose following the update.

VS Code version: Code 1.134.0 (110a328ea54b42367b803ec53ee0bf52ef26b419, 2026-08-18T18:24:44Z)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|AMD Ryzen 7 1800X Eight-Core Processor (16 x 3593)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x10de, DEVICE=0x1c03 [NVIDIA GeForce GTX 1060 6GB], DRIVER_VENDOR=NVIDIA, DRIVER_VERSION=32.0.15.8228 *ACTIVE*
GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8972
Machine model name:
Machine model version:
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
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|47.92GB (30.29GB free)|
|Process Argv|--crash-reporter-id 06b57d02-c011----|
|Screen Reader|no|
|VM|29%|
Extensions (14)

Name|Identifier|Author|Version
---|---|---|---
Better Comments|aaron-bond.better-comments|aaron-bond|3.0.2
Copy Relative Path|alexdima.copy-relative-path|alexdima|0.0.2
Path Tools|cg-cnu.vscode-path-tools|cg-cnu|0.0.4
markdownlint|davidanson.vscode-markdownlint|DavidAnson|0.62.1
Prettier - Code formatter|esbenp.prettier-vscode|esbenp|12.4.0
Random Everything|helixquar.randomeverything|helixquar|0.0.3
Paste URL|kukushi.pasteurl|kukushi|0.5.7
VS Color Picker|lihui.vs-color-picker|lihui|1.0.0
Markdown Shortcuts|mdickin.markdown-shortcuts|mdickin|0.12.0
Encode Decode|mitchdenny.ecdc|mitchdenny|1.8.0
Material Icon Theme|pkief.material-icon-theme|PKief|5.37.0
DeepSeek V4 for Copilot Chat|vizards.deepseek-v4-for-copilot|Vizards|0.7.1
Current File Path|yoshinorin.current-file-path|yoshinorin|5.0.0
Markdown All in One|yzhang.markdown-all-in-one|yzhang|3.6.3

A/B Experiments

```
vsliv368:30146709
pythonvspyt551:31249599
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
4f60g487:31327383
envsactivate1:31551504
cloudbuttont:31379625
3efgi100_wstrepl:31403338
ddidtcf:31399634
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
c3h7c220:31478652
cp_cls_t_1081:31454832
conptydll_true:31498968
e9c30283:31461165
test_control1:31471004
c9b86496:31447327
capico_axe_098a3278:31555651
ei9d7968:31496641
chat:31457767
8hig5102:31480529
89g7j272:31518289
i2gc6536:31499202
52612955:31516516
ghj88844:31499326
ec1eg703:31520046
ddid_c:31478207
hmra_i5g22:31518061
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
j0d79568:31499440
jb_cp_cls_t_632:31543129
56dj4588:31512888
32d76977:31512328
ha629193:31508444
a1ije391_t:31540920
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31548657
d7b18187:31526828
ahp-both-windows:31556933
sessions_5:31532894
ihg5j128:31534457
f412h606:31551416
7g2b5551:31542111
nes-ex-cf-euporie-03:31542868
enable_editor_pane_layout:31569726
allow-none:31555437
6i51c363:31551401
36h42362:31564511
c7c27ce7:31554789
1h923230:31564177
0dg73464:31554319
treatment-23-1:31555779
unuse_dynamic_mcp:31555281
0d8dfbc3:31570291
0c1h4866:31566224
session-mark-done:31558131
5b8j3302:31564601
permission_prompt_control:1332567
ccr_pr_nudge_adoption:1319471
vsc_wsm_t:1340632

```