diff --git a/autoload/ddc.vim b/autoload/ddc.vim
index ea30950..79fd875 100644
--- a/autoload/ddc.vim
+++ b/autoload/ddc.vim
@@ -99,6 +99,10 @@ function ddc#update_items(name, items) abort
   call ddc#_notify('updateItems', [a:name, a:items])
 endfunction
 
+function ddc#set_static_import_path(path) abort
+  call ddc#_notify('setStaticImportPath', [a:path])
+endfunction
+
 function ddc#on_event(event) abort
   " NOTE: If denops isn't running, stop
   if !ddc#_denops_running()
diff --git a/denops/ddc/app.ts b/denops/ddc/app.ts
index 6bfed3e..b987ed7 100644
--- a/denops/ddc/app.ts
+++ b/denops/ddc/app.ts
@@ -128,6 +128,10 @@ export function main(denops: Denops) {
     getCurrent(): Promise<DdcOptions> {
       return Promise.resolve(contextBuilder.getCurrent(denops));
     },
+    async setStaticImportPath(arg1: unknown): Promise<void> {
+      await loader.initStaticImportPath(denops, arg1 as string);
+      return Promise.resolve();
+    },
     async getPreviewer(arg1: unknown, arg2: unknown): Promise<Previewer> {
       const [_skip, context, options] = await contextBuilder
         .createContext(denops, "Manual");
diff --git a/denops/ddc/base/source.ts b/denops/ddc/base/source.ts
index 10b3448..a5cf656 100644
--- a/denops/ddc/base/source.ts
+++ b/denops/ddc/base/source.ts
@@ -10,7 +10,7 @@ import {
   SourceOptions,
 } from "../types.ts";
 import { Denops } from "../deps.ts";
-import { convertKeywordPattern } from "../util.ts";
+import { convertKeywordPattern } from "../utils.ts";
 import { Loader } from "../loader.ts";
 
 export type BaseSourceParams = Record<string, unknown>;
diff --git a/denops/ddc/ddc.ts b/denops/ddc/ddc.ts
index 7f44615..dfcf0f0 100644
--- a/denops/ddc/ddc.ts
+++ b/denops/ddc/ddc.ts
@@ -51,7 +51,7 @@ import {
   TimeoutError,
   vars,
 } from "./deps.ts";
-import { errorException } from "./util.ts";
+import { errorException } from "./utils.ts";
 
 type DdcResult = {
   items: Item[];
diff --git a/denops/ddc/loader.ts b/denops/ddc/loader.ts
index 3f1634b..bc5c2e2 100644
--- a/denops/ddc/loader.ts
+++ b/denops/ddc/loader.ts
@@ -11,6 +11,7 @@ import {
   UiName,
 } from "./types.ts";
 import { basename, Denops, fn, Lock, op, parse, toFileUrl } from "./deps.ts";
+import { safeStat } from "./utils.ts";
 
 export class Loader {
   private uis: Record<UiName, BaseUi<BaseUiParams>> = {};
@@ -25,6 +26,22 @@ export class Loader {
   private registerLock = new Lock(0);
   private cachedPaths: Record<string, string> = {};
   private prevRuntimepath = "";
+  private staticImportMod: Record<string, unknown> = {};
+
+  async initStaticImportPath(denops: Denops, path: string) {
+    if (Object.values(this.staticImportMod).length !== 0) {
+      return;
+    }
+
+    path = await fn.expand(denops, path) as string;
+    if (!await safeStat(path)) {
+      return;
+    }
+
+    //const startTime = Date.now();
+    this.staticImportMod = (await import(toFileUrl(path).href)).mods;
+    //console.log(`${Date.now() - startTime} ms`);
+  }
 
   async autoload(
     denops: Denops,
@@ -82,7 +99,8 @@ export class Loader {
 
     const name = parse(path).name;
 
-    const mod = await import(toFileUrl(path).href);
+    const mod = this.staticImportMod[path] ??
+      await import(toFileUrl(path).href);
 
     let add;
     switch (type) {
diff --git a/denops/ddc/util.ts b/denops/ddc/utils.ts
similarity index 81%
rename from denops/ddc/util.ts
rename to denops/ddc/utils.ts
index b2535ce..255cf09 100644
--- a/denops/ddc/util.ts
+++ b/denops/ddc/utils.ts
@@ -84,6 +84,26 @@ export async function errorException(
   }
 }
 
+export async function safeStat(path: string): Promise<Deno.FileInfo | null> {
+  // NOTE: Deno.stat() may be failed
+  try {
+    const stat = await Deno.lstat(path);
+    if (stat.isSymlink) {
+      try {
+        const stat = await Deno.stat(path);
+        stat.isSymlink = true;
+        return stat;
+      } catch (_: unknown) {
+        // Ignore stat exception
+      }
+    }
+    return stat;
+  } catch (_: unknown) {
+    // Ignore stat exception
+  }
+  return null;
+}
+
 Deno.test("vimoption2ts", () => {
   assertEquals(vimoption2ts("@,48-57,_,\\"), "a-zA-Z0-9_\\\\");
   assertEquals(vimoption2ts("@,-,48-57,_"), "a-zA-Z0-9_-");
diff --git a/doc/ddc.txt b/doc/ddc.txt
index 3cd4e72..0bdb554 100644
--- a/doc/ddc.txt
+++ b/doc/ddc.txt
@@ -332,6 +332,7 @@ ddc#hide([{event}])
 		It must be list of |autocmd-events| string or "Manual" or
 		"Initialize" or "Update".
 		NOTE: It is used to cancel the completion.
+		NOTE: It does not restore inserted text.
 >
 		inoremap <C-e>   <Cmd>call ddc#hide()<CR>
 <
@@ -352,6 +353,12 @@ ddc#register({type}, {path})
 		{path} is ddc extension path.
 		NOTE: {path} must be full path.
 
+                                                *ddc#set_static_import_path()*
+ddc#set_static_import_path()
+		Set the path of staticImport file to optimize load ddc
+		extensions.
+		It is generated by "dpp.vim" |dpp-option-convertImportPaths|.
+
                                                     *ddc#skip_next_complete()*
 ddc#skip_next_complete()
 		Skip the next auto completion.
@@ -1622,6 +1629,9 @@ https://github.com/Shougo/ddc-ui-pum
 ==============================================================================
 COMPATIBILITY                                              *ddc-compatibility*
 
+2023.12.04
+* Rename "util.ts" to "utils.ts".
+
 2023.11.08
 * Remove keywordPattern backward compatibility.