Rendering performance problems in 4.19

After updating to 4.19 from 4.18 our performance has dropped significantly. On Ipad pro our rendering cpu time went from 20ms to 27ms. GPU time went from 21.5ms to 25.9ms. We are using mobile forward rendering and Metal2.0. Has anyone else noticed similar behavior? At GDC our game was running solid 30fps for 8 hours straight and now it’s can’t handle it even for a minute.