Amazon Q causing performance issues

Type: Bug

It is causing performance issues and shows an "Unresponsive" label.

Activation: 5456ms
profile: 2198.29ms

Extension version: 1.88.0
VS Code version: Code 1.102.3 (488a1f239235055e34e673291fb8d8c810886f81, 2025-07-29T03:00:23.339Z)
OS version: Linux x64 6.14.0-27-generic
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz (4 x 1229)|
|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: disabled_software
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: disabled_off
webnn: disabled_off|
|Load (avg)|4, 5, 3|
|Memory (System)|7.58GB (3.32GB free)|
|Process Argv|--crash-reporter-id 4887f22b-9136-4f49-817d-3d133e754ad9|
|Screen Reader|no|
|VM|0%|
|DESKTOP_SESSION|gnome-classic|
|XDG_CURRENT_DESKTOP|GNOME-Classic:GNOME|
|XDG_SESSION_DESKTOP|gnome-classic|
|XDG_SESSION_TYPE|wayland|

A/B Experiments

```
vsliv368cf:30146710
binariesv615:30325510
2e7ec940:31000449
nativeloc1:31344060
dwcopilot:31170013
bajee813:31263137
6074i472:31201624
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythoneinst12:31285622
c7cif404:31314491
996jf627:31283433
pythonrdcb7:31342333
usemplatestapi:31297334
0aa6g176:31307128
747dc170:31275177
aj953862:31281341
pylancequickfixt:31358882
9d2cg352:31346308
convertlamdaf:31358879
usemarketplace:31343026
nesew2to5:31336538
agentclaude:31350858
replacestringexc:31350595
nes-set-on:31351930
6abeh943:31336334
yijiwantestdri0626-t:31336930
0927b901:31350571
f76d9909:31348711
0ej4-default:31346761
45650338:31358607
0cj2b977:31352657
newchatstate:31363049

```

Start by reproducing the unresponsive behavior in VS Code with extension version 1.88.0 on the reported Linux environment, then inspect activation and profile timings to locate the slow component. Done means the performance cause is identified and the extension no longer exhibits the reported unresponsive behavior under the same conditions.

Written by the indexing model from the issue text.