Suggestions load very slowly

[silverphoenix1110]

Issue Type: Bug

Suggestions load very slowly when I open multi projects

VS Code version: Code 1.21.1 (79b44aa, 2018-03-14T14:47:13.351Z)
OS version: Windows_NT ia32 10.0.16299

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz (8 x 2712)
Memory (System)	15.60GB (7.41GB free)
Process Argv	C:\Program Files (x86)\Microsoft VS Code\Code.exe
Screen Reader	no
VM	33%

Extensions (30)

Extension	Author (truncated)	Version
project-manager	ale	0.25.0
alignment	ann	0.3.0
scanner-js-twain-wia-javascript-browser-scan	asp	2.0.2
vscode-database	baj	1.5.1
path-intellisense	chr	1.4.2
open-html-in-browser	cod	0.1.21
compulim-vscode-dictionary	Com	0.0.5
cake-cored	Crh	1.1.2
vue-peek	dar	1.0.2
githistory	don	0.4.0
jquerysnippets	don	0.0.1
gitlens	eam	8.1.1
php-intellisense	fel	2.3.0
auto-close-tag	for	0.5.6
auto-rename-tag	for	0.0.15
code-runner	for	0.9.3
vue-snippets	hol	0.1.5
beautify	Hoo	1.3.0
minify	Hoo	0.3.0
html-tag-wrapper	hwe	0.2.3
sftp	lix	1.1.3
Go	luk	0.6.77
sqltools	mtx	0.12.1
php-docblocker	nei	1.3.3
vetur	oct	0.11.7
vscode-code-outline	pat	0.0.13
subtle-brackets	raf	2.1.0
pdf	tom	0.2.0
vscode-wakatime	Wak	1.1.24
change-case	wma	1.0.0

(1 theme extensions excluded)

Reproduces only with extensions

[ramya-rao-a]

In what file types do you see the slow suggestions?

[silverphoenix1110]

@ramya-rao-a They are php files (my project is using cakePHP 2. it have about ~700 files)

[ramya-rao-a]

Do you have the php.suggest.basic setting enabled or disabled?

[silverphoenix1110]

@ramya-rao-a php.suggest.basic is enabled. I'm using https://marketplace.visualstudio.com/items?itemName=felixfbecker.php-intellisense. Do they conflict?

[ramya-rao-a]

@roblourens can answer that

[roblourens]

There are some perf-related issues open on that extension, like felixfbecker/php-language-server#274, please see those