Limitations TL;DR

There are a number of limitations that you are likely to run into while you develop with Azle on ICP. These are generally the most limiting:

• 5 billion instruction limit for query calls (HTTP GET requests) (~1 second of computation)
• 20 billion instruction limit for update calls (HTTP POST/etc requests) (~5 seconds of computation)
• 2 MiB request size limit
• 3 MiB response size limit
• 4 GiB heap limit
• High request latency relative to traditional web applications (think seconds not milliseconds)
• High costs relative to traditional web applications (think ~10x traditional web costs)

Read more here for in-depth information on current ICP limitations.