diff --git a/autoload/easycomplete.vim b/autoload/easycomplete.vim
index 426394a..a47d22b 100644
--- a/autoload/easycomplete.vim
+++ b/autoload/easycomplete.vim
@@ -9,7 +9,7 @@ endif
 let g:easycomplete_script_loaded = 1
 
 function! easycomplete#LogStart()
-  call s:console()
+  " call s:console()
 endfunction
 
 " 全局 Complete 注册插件，其中 plugin 和 LSP Server 是包含关系
diff --git a/autoload/easycomplete/sources/buf.vim b/autoload/easycomplete/sources/buf.vim
index c56badc..fccf990 100644
--- a/autoload/easycomplete/sources/buf.vim
+++ b/autoload/easycomplete/sources/buf.vim
@@ -110,38 +110,16 @@ function! s:GetBufKeywordsList(typing)
       let tmpkeywords += local_kwlist
     endif
   endfor
-  if exists("*matchfuzzy")
-    " Lua 和 VIM 的实现做性能对比：
-    "
-    " lua 和 vim 的只做 matchfuzzy 速度对比，vim 更快
-    "    单词数→匹配出的结果个数
-    " lua 53377→9748   0.028384
-    " vim 53377→9748   0.010808
-    "
-    " vim 中 matchfuzzy 和 filter 的速度对比，filter 比 matchfuzzy 更慢
-    "            单词数→匹配出的结果个数
-    "  matchfuzzy 58422→21372 0.018895
-    "  filter，   21372→15633 0.027022
-    "
-    " lua 和 vim 做 matchfuzzy 和 filter 一起的速度对比
-    " lua 中两个函数放一起不影响时间复杂度，基本上和单个 matchfuzzy 性能一致
-    " vim 中必须把 matchfuzzy 和 filter 分开写，多一次全局遍历，表现更慢
-    "                          单词数→匹配出的结果个数
-    " lua matchfuzzy_and_filter 58422→18010   0.024128
-    " vim matchfuzzy_and_filter 58422→18010   0.040463
-    "
-    " 结论：优先使用 lua 做 matchfuzzy
-    if easycomplete#util#HasLua()
-      let keyword_list = s:lua_toolkit.matchfuzzy_and_filter(tmpkeywords, a:typing)
-    else
-      let keyword_list = matchfuzzy(tmpkeywords, a:typing)
-      let keyword_list = filter(keyword_list, 'stridx(v:val, "' . a:typing[0] . '") < 5')
-    endif
+  " call easycomplete#util#StartRecord()
+  if easycomplete#util#HasLua()
+    " 58424 → 3623   0.010739
+    let keyword_list = s:lua_toolkit.filter(tmpkeywords, a:typing)
   else
+    " 58424 → 3623   0.082437
     call filter(tmpkeywords, 'v:val =~ "^' . a:typing . '" && v:val !=# "' . a:typing . '"')
     let keyword_list = tmpkeywords
   endif
-
+  " call easycomplete#util#StopRecord('filter ' . len(tmpkeywords) . "→" . len(keyword_list))
   return keyword_list
 endfunction
 
diff --git a/autoload/easycomplete/util.vim b/autoload/easycomplete/util.vim
index 04dd0e8..f3ea883 100644
--- a/autoload/easycomplete/util.vim
+++ b/autoload/easycomplete/util.vim
@@ -421,6 +421,27 @@ function! easycomplete#util#FuzzySearch(needle, haystack)
 endfunction
 
 function! s:FuzzySearchRegx(needle, haystack)
+  " Lua 和 VIM 的实现 matchfuzzy 做性能对比：
+  "
+  " lua 和 vim 的只做 matchfuzzy 速度对比，vim 更快
+  "    单词数→匹配出的结果个数
+  " lua 53377→9748   0.028384
+  " vim 53377→9748   0.010808
+  "
+  " vim 中 matchfuzzy 和 filter 的速度对比，filter 比 matchfuzzy 更慢
+  "            单词数→匹配出的结果个数
+  "  matchfuzzy 58422→21372 0.018895
+  "  filter，   21372→15633 0.027022
+  "
+  " lua 和 vim 做 matchfuzzy 和 filter 一起的速度对比
+  " lua 中两个函数放一起不影响时间复杂度，基本上和单个 matchfuzzy 性能一致
+  " vim 中必须把 matchfuzzy 和 filter 分开写，多一次全局遍历，表现更慢
+  "                          单词数→匹配出的结果个数
+  " lua matchfuzzy_and_filter 58422→18010   0.024128
+  " vim matchfuzzy_and_filter 58422→18010   0.040463
+  "
+  " 结论：如果需要同时使用 filter 和 matchfuzzy 的时候优先使用 lua 做 matchfuzzy
+  "
   " if easycomplete#util#HasLua()
   "   let s:lua_toolkit = v:lua.require("easycomplete")
   "   return s:lua_toolkit.fuzzy_search(a:needle, a:haystack)
diff --git a/lua/easycomplete.lua b/lua/easycomplete.lua
index ac4baad..69ba788 100644
--- a/lua/easycomplete.lua
+++ b/lua/easycomplete.lua
@@ -164,7 +164,7 @@ function EasyComplete.fuzzy_search(needle, haystack)
   local middle_regx = "[0-9a-z#_]*"
   local needle_ls_regx = string.gsub(needle, "(.)", "%1" .. middle_regx)
   local idx = string.find(haystack, needle_ls_regx)
-  if idx ~= nil and idx <= 5 then
+  if idx ~= nil and idx <= 2 then
     return true
   else
     return false
@@ -182,4 +182,18 @@ function EasyComplete.matchfuzzy_and_filter(match_list, needle)
   return result
 end
 
+function EasyComplete.filter(match_list, needle)
+  local result = {}
+  for _, item in ipairs(match_list) do
+    if #item < #needle then
+      -- pass
+    elseif item == needle then
+      -- pass
+    elseif string.find(string.lower(item), "^" .. string.lower(needle)) ~= nil then
+      table.insert(result, item)
+    end
+  end
+  return result
+end
+
 return EasyComplete