turn of antialiasing.

src/Web/Avalonia.Web.Blazor/AvaloniaView.razor.cs

@@ -289,7 +289,6 @@ namespace Avalonia.Web.Blazor
 
                     _initialised = true;
 
-                    await Task.Delay(250); // without this we get some kind of initialisation error with gl
                     _topLevel.Prepare();
 
                     _topLevel.Renderer.Start();

src/Web/Avalonia.Web.Blazor/Interop/Typescript/SKHtmlCanvas.ts

@@ -200,7 +200,7 @@ export class SKHtmlCanvas {
 			alpha: 1,
 			depth: 1,
 			stencil: 8,
-			antialias: 1,
+			antialias: 0,
 			premultipliedAlpha: 1,
 			preserveDrawingBuffer: 0,
 			preferLowPowerToHighPerformance: 0,
@@ -209,7 +209,7 @@ export class SKHtmlCanvas {
 			minorVersion: 0,
 			enableExtensionsByDefault: 1,
 			explicitSwapControl: 0,
-			renderViaOffscreenBackBuffer: 0,
+			renderViaOffscreenBackBuffer: 1,
 		};
 
 		let ctx: WebGLRenderingContext = GL.createContext(htmlCanvas, contextAttributes);