slow with vtsls for certain packages and moduleResolution in tsconfig

[Aqothy]

Make sure you have done the following

• Updated to the latest version of blink.cmp
• Searched for existing issues and documentation (try <C-k> on https://cmp.saghen.dev)

Bug Description

Blink cmp is working perfectly fine and fast on most of my projects (mostly web dev with vtsls), however I've noticed that for some of my projects, the completion can take up to multiple seconds to load or just not load at all and even causes neovim to lag. After comparing projects and their dependencies, I've found there to be 2 culprits of this. First is large ui libraries like react-icons and mui, but the weird thing is for react-icons, earlier versions work fine with blink, for example v4.12, but not the latest v5.3. Another thing is the moduleResolution in tsconfig, if the moduleResolution is "bundler" instead of "node" and there are these large ui libraries, blink also becomes extremely slow.

This problem doesn't happen with nvim cmp so I'm pretty sure it's not a lsp problem.

Relevant configuration

neovim version

v0.10.4

blink.cmp version

v0.11.0

[Saghen]

Do you mind providing a repro.lua with an example project so I can more easily replicate this?

[Aqothy]

Hi this is the repro lua I used, you would have to install vtsls globally, Install by npm install -g @vtsls/language-server, then run vtsls --stdio. Requires node >= 16 or do it with mason. I cant share an example project but I recreated the issue by creating a fresh next js project with typescript with all default options or react with vite should work too, just click enter through all the options, then installed react-icons latest version. If you go to a ts file or tsx file and test autocomplete, I did it by:
const test = [1,2,3,4,5]
test.map(whatever in here)

you can see that the completion is quite slow and sometimes even causes neovim to lag. Now a temporary fix I found was by going to tsconfig file in the next js project and changing the moduleResolution to "node" instead of "bundler", and now if you close neovim and reopen the project and test the autocomplete in the same file, the autocomplete is super fast and what is expected. Im pretty sure this not a lsp or react icon issue as the completion works fine with nvim cmp even without applying the temporary fixes I mentioned above. Anyways thanks for this awesome plugin, look forward to hearing back!

-- Run with `nvim -u repro.lua`

vim.env.LAZY_STDPATH = ".repro"
load(vim.fn.system("curl -s https://raw.githubusercontent.com/folke/lazy.nvim/main/bootstrap.lua"))()

---@diagnostic disable-next-line: missing-fields
require("lazy.minit").repro({
	spec = {
		{
			"saghen/blink.cmp",
			version = "*",
			event = { "InsertEnter", "CmdLineEnter" },
			-- enabled = false,
			dependencies = {
				-- enable if there is any cmp sources that you want blink to use from nvim cmp
				-- {
				--     'saghen/blink.compat',
				--     version = '*',
				--     lazy = true,
				--     opts = {
				--         impersonate_nvim_cmp = true,
				--     }
				-- },
			},
			opts_extend = { "sources.default" },
			opts = {
				keymap = {
					preset = "none",
					["<C-y>"] = { "select_and_accept" },
					["<C-b>"] = { "scroll_documentation_up", "fallback" },
					["<C-f>"] = { "scroll_documentation_down", "fallback" },
					["<C-h>"] = { "hide", "fallback" },
					["<C-Space>"] = { "show", "show_documentation", "hide_documentation" },
					["<C-p>"] = { "select_prev", "fallback" },
					["<C-n>"] = { "select_next", "fallback" },
					cmdline = {
						preset = "none",
						["<C-y>"] = { "select_and_accept" },
						["<C-b>"] = { "scroll_documentation_up", "fallback" },
						["<C-f>"] = { "scroll_documentation_down", "fallback" },
						["<C-h>"] = { "hide", "fallback" },
						["<C-Space>"] = { "show", "show_documentation", "hide_documentation" },
						["<C-p>"] = { "select_prev", "fallback" },
						["<C-n>"] = { "select_next", "fallback" },
					},
				},

				-- default list of enabled providers defined so that you can extend it
				-- elsewhere in your config, without redefining it, via `opts_extend`
				sources = {
					default = { "lsp", "path", "snippets", "buffer" },

					-- adding any nvim-cmp sources here will enable them
					-- with blink.compat, need to uncomment compat in dependencies
					-- compat = {},

					-- providers = {
					-- 	lsp = {
					-- 		transform_items = function(_, items)
					-- 			-- Remove the "Text" source from lsp autocomplete
					-- 			return vim.tbl_filter(function(item)
					-- 				return item.kind ~= vim.lsp.protocol.CompletionItemKind.Text
					-- 			end, items)
					-- 		end,
					-- 	},
					-- },

					-- disable cmdline by passing empty table
					cmdline = function()
						local type = vim.fn.getcmdtype()
						-- Search forward and backward
						if type == "/" or type == "?" then
							return { "buffer" }
						end
						-- Commands
						if type == ":" or type == "@" then
							return { "cmdline" }
						end
						return {}
					end,
				},
				completion = {
					accept = {
						-- experimental auto-brackets support
						auto_brackets = {
							enabled = false,
						},
					},
					menu = {
						draw = {
							treesitter = { "lsp" },
							columns = {
								{ "label", "label_description", gap = 1 },
								{ "kind_icon", "kind", gap = 1 },
							},
						},
						border = "rounded",
					},
					list = {
						selection = { auto_insert = false },
						max_items = 10,
					},
					documentation = {
						window = { border = "rounded" },
					},
				},

				appearance = {
					-- Sets the fallback highlight groups to nvim-cmp's highlight groups
					-- Useful for when your theme doesn't support blink.cmp
					-- will be removed in a future release
					use_nvim_cmp_as_default = false,
					-- Set to 'mono' for 'Nerd Font Mono' or 'normal' for 'Nerd Font'
					-- Adjusts spacing to ensure icons are aligned
					nerd_font_variant = "mono",
				},

				-- experimental signature help support
				signature = {
					enabled = false,
				},
			},
			config = function(_, opts)
				require("blink.cmp").setup(opts)
			end,
		},
		{
			"neovim/nvim-lspconfig",
			opts = {
				servers = {
					vtsls = {
						settings = {
							complete_function_calls = true,
							vtsls = {
								enableMoveToFileCodeAction = true,
								autoUseWorkspaceTsdk = true,
								experimental = {
									maxInlayHintLength = 30,
									completion = {
										enableServerSideFuzzyMatch = true,
									},
								},
							},
							typescript = {
								updateImportsOnFileMove = { enabled = "always" },
								suggest = {
									completeFunctionCalls = true,
								},
								inlayHints = {
									enumMemberValues = { enabled = true },
									functionLikeReturnTypes = { enabled = true },
									parameterNames = { enabled = "literals" },
									parameterTypes = { enabled = true },
									propertyDeclarationTypes = { enabled = true },
									variableTypes = { enabled = false },
								},
							},
						},
					},
				},
			},
			config = function(_, opts)
				local lspconfig = require("lspconfig")
				for server, config in pairs(opts.servers) do
					-- passing config.capabilities to blink.cmp merges with the capabilities in your
					-- `opts[server].capabilities, if you've defined it
					config.capabilities = require("blink.cmp").get_lsp_capabilities()
					lspconfig[server].setup(config)
				end
			end,
		},
	},
})