From todays newsletter:
Recently there has been quite a bit of discussion regarding how the Enhanced Client performs with certain graphical effects that creatures use. In an attempt to provide a solution I stated you could adjust settings to increase performance. It turns out these settings were not functioning as we expected, however we have identified the problem and will be releasing a client patch soon to correct it. Thank you to all those who brought this issue to our attention, and apologize for not addressing this sooner. You can read more about Enhanced Client performance issues below.
Source
Thanks to the dev team for listening and looking into this! @Mesanna @Bleak @Kyronix @Misk
Recently there has been quite a bit of discussion regarding how the Enhanced Client performs with certain graphical effects that creatures use. In an attempt to provide a solution I stated you could adjust settings to increase performance. It turns out these settings were not functioning as we expected, however we have identified the problem and will be releasing a client patch soon to correct it. Thank you to all those who brought this issue to our attention, and apologize for not addressing this sooner. You can read more about Enhanced Client performance issues below.
Source
Thanks to the dev team for listening and looking into this! @Mesanna @Bleak @Kyronix @Misk