diff --git a/.config/nvim/init.lua b/.config/nvim/init.lua
index d913130..9199b9d 100644
--- a/.config/nvim/init.lua
+++ b/.config/nvim/init.lua
@@ -12,13 +12,6 @@ require("statusline")   -- ./lua/statusline.lua
 
 require("polyjuice")    -- ~/.local/src/polyjuice/lua/polyjuice.lua
 
--- LSP
-require("lsp")          -- ./lua/lsp/init.lua
-require("lsp.c")        -- ./lua/lsp/c.lua
-require("lsp.lua")      -- ./lua/lsp/lua.lua
-require("lsp.python")   -- ./lua/lsp/python.lua
-require("lsp.tex")      -- ./lua/lsp/python.lua
-
 -- auto complete
 require("plugin.compe") -- ./lua/plugin/compe.lua
 
diff --git a/.config/nvim/lua/lsp/init.lua b/.config/nvim/lua/lsp/init.lua
index 32d39a7..c7e5d03 100644
--- a/.config/nvim/lua/lsp/init.lua
+++ b/.config/nvim/lua/lsp/init.lua
@@ -3,6 +3,8 @@
 -- License       : GPLv3
 -- Description   : neovim lsp config file
 
+local lsp = {}
+
 vim.fn.sign_define(
         "LspDiagnosticsSignError",
         {
@@ -63,3 +65,11 @@ vim.lsp.protocol.CompletionItemKind = {
         "   ",       -- Operator
         "   ",       -- TypeParameter
 }
+
+function lsp.setup()
+        local ft = vim.bo.filetype
+        if ft == "cpp" then ft = "c" end
+        require("lsp." .. ft)           -- ./<ft>.lua
+end
+
+return lsp
diff --git a/.config/nvim/lua/plugins.lua b/.config/nvim/lua/plugins.lua
index e1a02d4..87c2352 100644
--- a/.config/nvim/lua/plugins.lua
+++ b/.config/nvim/lua/plugins.lua
@@ -34,12 +34,15 @@ return require("packer").startup(function()
         use {
                 "nvim-telescope/telescope.nvim",
                 requires = { "nvim-lua/popup.nvim", "nvim-lua/plenary.nvim"},
-                opt = true,
-                cmd = {"Telescope"}
+                cmd = "Telescope"
         }
 
         -- LSP
-        use "neovim/nvim-lspconfig"
+        use {
+                "neovim/nvim-lspconfig",
+                ft = { "c", "cpp", "lua", "python", "tex"},
+                config = function() require("lsp").setup() end
+        }
 
         -- auto completion
         use "hrsh7th/nvim-compe"
@@ -47,8 +50,7 @@ return require("packer").startup(function()
         -- display colors directly in editor
         use {
                 "norcalli/nvim-colorizer.lua",
-                opt = true,
-                cmd = {"ColorizerToggle"}
+                cmd = "ColorizerToggle"
         }
 
 end)
diff --git a/.config/nvim/lua/settings.lua b/.config/nvim/lua/settings.lua
index 18eefbf..0740eae 100644
--- a/.config/nvim/lua/settings.lua
+++ b/.config/nvim/lua/settings.lua
@@ -19,6 +19,7 @@ opt.wildoptions         = "pum"
 g.loaded_netrw          = 1           -- disable netrw
 
 -- editor
+opt.lazyredraw          = true
 opt.splitright          = true
 opt.splitbelow          = true
 opt.scrolloff           = 4
diff --git a/.local/share/nvim/lsp/sumneko_lua b/.local/share/nvim/lsp/sumneko_lua
index 9889dc0..8bd3d09 160000
--- a/.local/share/nvim/lsp/sumneko_lua
+++ b/.local/share/nvim/lsp/sumneko_lua
@@ -1 +1 @@
-Subproject commit 9889dc0d1c9673575ebbfa62f3d47d59d0ff8664
+Subproject commit 8bd3d0987af29c71f5e6bfa884936dc99aa58293