Hi Yan,
There are a couple caching options you can try. In a development environment you can set cachebust=true to get the latest content. Although we do not recommend turning on cachebust in production as it can slow down performance. You can also play around with the cacheSeconds or staleCacheSeconds options although similarly we recommend sticking to the default values for better performance. One example of when you might want to reduce cacheSeconds is for an announcement bar section that changes content frequently.
You may also find this forum post useful which goes into more detail about how Builder.io handles caching. Hope this helps!
How long does the cache take to clear after publishing content?
Thanks,