neovim use this plugin will make a high cpu percentage

**Describe the bug**
When I use this plugin on vim, it works very well, but when I use it on neovim(terminal), the cpu usage is too high and it will not return back to normal level percentage unless I quit neovim.

**To Reproduce**
Steps to reproduce the behavior:

1. CocInstall coc-vimlsp
2. enter any `*.vim` file

**Expected behavior**

normal cpu percentage, or let me know how to debug and fix it.

**Screenshots**

**Desktop (please complete the following information):**
- OS: MacOS

following is my configuration in `~/.nvim/coc-setting.json`

```json
// coc-vimlsp
"vimlsp.trace.server": "off",
"vimlsp.debug": false,
"vimlsp.diagnostic.enable": true,
"vimlsp.suggest.fromVimruntime": true,
"vimlsp.suggest.fromRuntimepath": true,
"vimlsp.indexes.gap": 100,
"vimlsp.indexes.count": 1,
"vimlsp.indexes.runtimepath": true,
"vimlsp.indexes.projectRootPatterns": [
".git",
"autoload",
"plugin"
],
"vimlsp.filetypes": [
"vim"
],
```