I've noticed in our hosting's snapshot that our admin ajax has been very slow.
The example http query below took over 191seconds! also this fired every couple of minutes.. /admin-ajax.php?action=oembed-cache&post=814
apart from that just the normal admin-ajax.php takes about 15seconds. Sometimes spikes to 45seconds.
This leads to some get requests for our products to take 45seconds.
Any ideas what the cause/fix to this might be, or at least where I should look into next? Query monitor is not showing any errors only some minor notices and nothing in debug.log.
Thanks