IntelliSense has a half-second delay

[isinvon]

Type: Bug

Using Pylance Extended IntelliSense has a half-second delay, which affects the experience.

Extension version: 2023.7.40
VS Code version: Code 1.78.2 (b3e4e68a0bc097f0ae7907b217c1119af9e03435, 2023-05-10T14:39:26.248Z)
OS version: Windows_NT x64 10.0.19045
Modes:
Sandboxed: Yes

System Info

Item	Value
CPUs	11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz (8 x 2419)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off 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 video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	undefined
Memory (System)	15.80GB (3.49GB free)
Process Argv	--crash-reporter-id 2123c431-83b9-47c8-b7dc-2d65961922ff
Screen Reader	no
VM	33%

A/B Experiments

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pynewext54:30695312
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showindicator:30785052
pythongtdpath:30769146
i26e3531:30792625
pythonnosmt12:30797651
e537b577:30795824
dsvsc013:30795093
dsvsc014:30797589

[bschnurr]

can you provide a code example?

[isinvon]

When I use Jedi, the prompt panel will be displayed immediately after typing the first letter, and then the prompt panel will appear to follow up with zero delay when I continue typing. But when using Pylance, it feels half a beat slower

pylance_test.mp4

[debonte]

@isinvon, to investigate this we would need to be able to reproduce the behavior. Can you provide access to source code in a repo that reproduces this issue?