Hi,
I purchased your plugin last week. We have a rather large community and after installing your plugin it brings our server stack to it's knees with multiple processes using 100% CPU.
sendto(6, "get 42a777f791_advancedtagsprefi"..., 55, MSG_NOSIGNAL, NULL, 0) = 55
recvfrom(6, 0x5635492d9268, 8196, MSG_NOSIGNAL, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=6, events=POLLIN}], 1, 5000) = 1 ([{fd=6, revents=POLLIN}])
recvfrom(6, "VALUE 42a777f791_advancedtagspre"..., 8196, MSG_NOSIGNAL, NULL, NULL) = 2346
It looks like it's reading something from memcache and then doing a lot of php stuff afterwards, after those syscalls then poop hits the fan and our servers grind to a halt.