Yeah, I know but that's what makes the site run fast, I can remove the cache but then it would takes 10 seconds to load each page, however the cache may take up 640mb but it won't get bigger.
The cache mainly is taken up by the map as there are 160,000 rows so the cache caches every single row but to reduce it then it will be very complicated and I was going to save that until I have finished the rest of my site first.
