We have our board with this checked on and level at max...9
Is this ok?
Can someone explain if this will speed up posting etc or...?
Any help appreciated.
gzip compression is there to minimize the number of packets sent per request. It helps with bandwidth and slows down speed.
It basically zips the page up and sends it to the browser. If you have low bandwidth limit on your hosting account, it might be better to set this to a higher setting, but the tradeoff is that the server must take a little bit more time compressing it. If your bandwidth limit is high (or you're not reaching your bandwidth limit by far) it's fine to leave the setting at 2-4 so that you get the benefit of compression, but it doesn't take the server that long to process.