Hello, Is there anyone who has faced the problem of slow posting and wp admin running slow. ? Please help me out.
Well, that probably depends on how popular your website is. Maybe it's time to move to another host or hosting plan? If you want, you can use the "super cache" wordpress plugin, this will create static versions of the front facing pages which should result in alot less cpu usage == better. This does not create static admin pages (obviously), but because the public pages are now cached, your admin will be much faster.