WebView Twitter slow loading

I have a WebView loading a Twitter mobile user's wall:

NSString 开发者_StackOverflow社区*urlAddress = [NSString stringWithString:@"http://mobile.twitter.com/gatrecords"]; 
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[myWebView loadRequest:requestObj];

When web is loaded it freezes for 10- 15 secs then I can navigate normally. On the iPhone's Safary Browser happens the same. That behavior only happens with loading mobile.twitter plus a user's wall.

On the simulator all is ok.

Any suggostions on what could be wrong ?

I found a workaround for the freezeing. Apparently WebView freezed bacause tries to execute twitter's javascript for 10 seconds, after that time the system will stop trying and the WebView will be scrollable. So I stopLoading only when twitter's web is being loaded:

- (void)webViewDidFinishLoad:(UIWebView *)webView {

  NSString *twitter = [NSString stringWithFormat:@"%@", [[myWebView request] URL]];

  if ([twitter isEqualToString:@"http://mobile.twitter.com/gatrecords"]) {
       [myWebView stopLoading];
  }
}

Then I get an error alert after the 10 seconds regarding javascript did not load correctly, I fix that as follows:

- (void)webViewDidStartLoad:(UIWebView *)webView {

 [myWebView stringByEvaluatingJavaScriptFromString:@"window.alert=null;"];

}