Bug report link here: https://bugs.chromium.org/p/chromium/issues/detail?id=903486&q=jank%20overview&colspec=ID%20Pri%20M%20Stars%20ReleaseBlock%20Component%20S

Bug report link here: https://bugs.chromium.org/p/chromium/issues/detail?id=903486&q=jank%20overview&colspec=ID%20Pri%20M%20Stars%20ReleaseBlock%20Component%20Status%20Owner%20Summary%20OS%20Modified https://bugs.chromium.org/p/chromium/issues/detail?id=903486... Apparently the rounded corner mask is causing performance issues/stutter even on Chromium running on high spec'd machines.