diff --git a/lua/cmp/context.lua b/lua/cmp/context.lua
index 1342cd4..2d53abc 100644
--- a/lua/cmp/context.lua
+++ b/lua/cmp/context.lua
@@ -11,7 +11,6 @@ local api = require('cmp.utils.api')
 ---@field public option cmp.ContextOption
 ---@field public filetype string
 ---@field public time number
----@field public mode string
 ---@field public bufnr number
 ---@field public cursor vim.Position|lsp.Position
 ---@field public cursor_line string
@@ -45,7 +44,6 @@ context.new = function(prev_context, option)
   self.option = option or { reason = types.cmp.ContextReason.None }
   self.filetype = vim.api.nvim_buf_get_option(0, 'filetype')
   self.time = vim.loop.now()
-  self.mode = vim.api.nvim_get_mode().mode
   self.bufnr = vim.api.nvim_get_current_buf()
 
   local cursor = api.get_cursor()
diff --git a/lua/cmp/init.lua b/lua/cmp/init.lua
index 6338010..d93fe4d 100644
--- a/lua/cmp/init.lua
+++ b/lua/cmp/init.lua
@@ -270,13 +270,10 @@ cmp.setup = setmetatable({
 })
 
 autocmd.subscribe('InsertEnter', function()
-  -- Avoid unexpected mode detection (mode() function will returns `normal mode` on the InsertEnter event.)
-  vim.schedule(function()
-    if config.enabled() then
-      cmp.core:prepare()
-      cmp.core:on_change('InsertEnter')
-    end
-  end)
+  if config.enabled() then
+    cmp.core:prepare()
+    cmp.core:on_change('InsertEnter')
+  end
 end)
 
 autocmd.subscribe('TextChanged', function()
diff --git a/lua/cmp/utils/api.lua b/lua/cmp/utils/api.lua
index a91f3e3..4b4feca 100644
--- a/lua/cmp/utils/api.lua
+++ b/lua/cmp/utils/api.lua
@@ -17,7 +17,7 @@ api.is_insert_mode = function()
     'i',
     'ic',
     'ix',
-  }, vim.api.nvim_get_mode().mode)
+  }, vim.api.nvim_get_mode().mode) or vim.v.insertmode == 'i'
 end
 
 api.is_cmdline_mode = function()