Umbraco Dictionary Key Performance

I've recently had the task of optimizing a clients website. On my tour of the site i noticed an instance where 20-30 dictionary keys are requested in succession for a single view.

I decided to do some performance testing and find out how quickly the action is performed before and after caching.

I made 25 keys in the backoffice with naming following this scheme "key0", "key1" and so on.

controller action:

public string Get()
{
    StringBuilder sb = new StringBuilder();
 
    var timer = new Stopwatch();
 
    timer.Start();
 
    for (var x = 0; x < 25; x++)
        Umbraco.GetDictionaryValue("key" + x);
 
    timer.Stop();
 
    return timer.ElapsedMilliseconds + "ms " + 
           timer.ElapsedTicks + " ticks";
}

Results were on first run (presumably includes a database query)

112ms 262011 ticks 

then progressively lower 

32ms 74887 ticks 
4ms 10292 ticks 
1ms 3733 ticks