Power Chart Overload

Hi guys, have a good day. I got something URGENT to ask. Thanks in advance.

May I know that why my Power Chart always have the problem of chart overload which my selected tagging keep missing and I need to select the tagging again. Another problem is when the chart is overload I’m unable to print the chart and unable to see the tagging that I want to select.

I think the main problem is I have a lot of tagging in this system which around 800+ tags so may I know that what is the best ways to solve my current problem.