If you are advanced member you can change the setting lower.
But is also depends on where you stay relative to the server and the lag on the site
Faster times also means that you may have higher risk of getting frozen if the settings are not done properly
It is good to start slow for a new account in RS and show that you slowly improved as you get more 'experienced'
But this is personal preferences
So is it okay for my times to be showing 3000-4000? I know the chance of getting iced is always here with the AB, but i want to keep my chances as low as possible!