cc.RichText performance issues

Hi
I just updated my engine from 1.7.0 -> 2.0.10 and am having a performance issue.
Wherever I use cc.RichText has a performance problem, fps drops dramatically and the game fades for a few seconds. Checked on ios and android devices.
This problem I did not encounter when using version 1.7.0
Please help me
Tks

Did you try this:

Thanks for your answer but my problem encountered is RichText not Label.
Richtext performance on version 2.x is really bad.
I tested it on the web and the performance was also bad. Not just on mobile

Sad to hear that. I hope an update will fix this !