"at a snail's pace" means: going very slowly.
For example: The repairs to the Fukushima reactor are going at a snail's pace.
---
I went to MacDonald's today and I had the salad. I am very healthy :)
This blog is mainly to explain a different English language expression every day. Sometimes I post other stuff. I also have a YouTube channel which is mostly about computer software: https://www.youtube.com/englishspacedog