diff --git a/src/views/common/DocumentSearch.vue b/src/views/common/DocumentSearch.vue
index 4af1afe..b5db855 100644
--- a/src/views/common/DocumentSearch.vue
+++ b/src/views/common/DocumentSearch.vue
@@ -61,7 +61,7 @@ if (resolvedWorkerSrc) {
     pdfjsLib.GlobalWorkerOptions.workerSrc = null
 }
 
-const DEFAULT_SCALE = 1
+const DEFAULT_SCALE = 0.95
 
 export default {
     name: 'DocumentSearch',
@@ -224,28 +224,44 @@ export default {
                 }
                 await page.render(renderContext).promise
 
-                const textLayerDiv = document.createElement('div')
-                textLayerDiv.className = 'textLayer'
-                textLayerDiv.style.width = `${viewport.width}px`
-                textLayerDiv.style.height = `${viewport.height}px`
-                container.appendChild(textLayerDiv)
+                this.pageTextDivs[index] = []
 
-                const textLayer = new TextLayerBuilder({
-                    textLayerDiv,
-                    pageIndex: index,
-                    viewport,
-                    eventBus: this.eventBus,
-                })
+                const scheduleTextLayer = () => {
+                    const textLayerDiv = document.createElement('div')
+                    textLayerDiv.className = 'textLayer'
+                    textLayerDiv.style.width = `${viewport.width}px`
+                    textLayerDiv.style.height = `${viewport.height}px`
+                    container.appendChild(textLayerDiv)
 
-                const textContent = await page.getTextContent()
-                textLayer.setTextContent(textContent)
-                textLayer.render()
+                    const textLayer = new TextLayerBuilder({
+                        textLayerDiv,
+                        pageIndex: index,
+                        viewport,
+                        eventBus: this.eventBus,
+                    })
+
+                    page.getTextContent()
+                        .then((textContent) => {
+                            textLayer.setTextContent(textContent)
+                            textLayer.render()
+
+                            const textDivs = [...textLayer.textDivs]
+                            textDivs.forEach((div) => {
+                                div.dataset.originalText = div.textContent
+                            })
+                            this.pageTextDivs[index] = textDivs
+                        })
+                        .catch((err) => {
+                            console.warn(`获取第 ${pageNumber} 页文本失败`, err)
+                        })
+                }
+
+                if (typeof window.requestIdleCallback === 'function') {
+                    window.requestIdleCallback(scheduleTextLayer, { timeout: 500 })
+                } else {
+                    setTimeout(scheduleTextLayer, 40)
+                }
 
-                const textDivs = [...textLayer.textDivs]
-                textDivs.forEach((div) => {
-                    div.dataset.originalText = div.textContent
-                })
-                this.pageTextDivs[index] = textDivs
                 this.renderedPages.set(pageNumber, { container, viewport })
                 if (this.observer) {
                     this.observer.unobserve(container)
@@ -265,7 +281,7 @@ export default {
             } else {
                 this.renderQueue.push(pageNumber)
             }
-            const MAX_QUEUE_LENGTH = 5
+            const MAX_QUEUE_LENGTH = 4
             if (this.renderQueue.length > MAX_QUEUE_LENGTH) {
                 this.renderQueue.splice(MAX_QUEUE_LENGTH)
             }
@@ -280,7 +296,6 @@ export default {
                     const pageNumber = this.renderQueue.shift()
                     await new Promise((resolve) => requestAnimationFrame(resolve))
                     await this.renderSinglePage(pageNumber)
-                    this.scheduleRender(pageNumber + 1)
                 }
             } finally {
                 this.isProcessingQueue = false
@@ -582,11 +597,15 @@ export default {
     top: 0;
     right: 0;
     bottom: 0;
-    pointer-events: none;
+    pointer-events: auto;
+    user-select: text;
+    -webkit-user-select: text;
 }
 
 .textLayer>span {
     cursor: text;
+    user-select: text;
+    -webkit-user-select: text;
 }
 
 .search-highlight {