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// 使用CDN加速静态资源加载
<script src="https://cdn.example.com/script.js"></script>

// 页面懒加载，减少初始加载时间
<img data-src="image.jpg" class="lazyload" />

// 使用Web Workers处理复杂计算，避免阻塞主线程
const worker = new Worker('worker.js');
worker.postMessage({data: largeDataSet});
worker.onmessage = function(event) {
    console.log('Received result:', event.data);
};

# 使用Redis缓存热点数据，减轻数据库查询压力
import redis

r = redis.Redis(host='localhost', port=6379, db=0)

def get_user_info(user_id):
    info = r.get(f'user:{user_id}')
    if info is None:
        info = fetch_from_db(user_id)
        r.setex(f'user:{user_id}', 3600, info)  # 缓存1小时
    return info

# 数据库事务处理确保数据一致性
from django.db import transaction

@transaction.atomic
def create_user(username, email):
    user = User.objects.create(username=username, email=email)
    # 其他相关操作...
    return user