VK API Too many requests per second

for (final VKApiDialog msg : vkList) { 
Runnable add = new Runnable(){ 
@Override 
public void run() { 
String id = String.valueOf(msg.message.user_id); 
VKRequest getname = VKApi.users().get(VKParameters.from(VKApiConst.USER_IDS, id)); 
getname.executeWithListener(new VKRequest.VKRequestListener() { 
@Override 
public void onComplete(VKResponse responses) { 
try { 
VKList<VKApiUser> user = (VKList<VKApiUser>) responses.parsedModel; 
messages.add(msg.message.body); 
System.out.println("Name: " + msg.message.body); 
users.add(user.get(0).first_name + " " + user.get(0).last_name); 
System.out.println(user.get(0).first_name + " " + user.get(0).last_name); 
adapter.notifyDataSetChanged(); 
 
Thread.currentThread().sleep(5000); 
} catch (Throwable t) { 
t.printStackTrace(); 
} 
} 
 
@Override 
public void onError(VKError error) { 
super.onError(error); 
try { 
System.out.println(error); 
Thread.currentThread().sleep(5000); 
} catch (Throwable t) { 
t.printStackTrace(); 
} 
} 
}); 
} 
 
}; 
Thread thread = new Thread(add); 
thread.start();