That is true and neither platform is free from their issues. But NativeScript, Capacitor, Ionic and at last... Cordova. Has each of ther own oddities. NativeScript has a really awesome typing translation of the native apis to typescript. That's honestly the most fantastic to work with of any of all of them. Great for prototyping.
But when it comes to performance. None of them beats RN. You can make some good looking continous animation of most of them (not cordova or ionic). But when it comes to lag when moving between screens, RN on mobile comes on top without doubt.