Create a backup copy of the file before proceeding. Use a text editor to edit the "easy-cfg.xml", "normal-cfg.xml", or "expert-cfg.xml" file (for the corresponding difficulty setting) in the "data" directory of the game folder. Scroll down to the "Default" section and find the following text:
( <!-- WordShark 1.0 -->
<!-- Difficulty Level: Easy -->
<Config>
<!-- Default Settings -->
<Default>
<DiverSpeed> 0.300000 </DiverSpeed>
<KnockBack> 5 </KnockBack>
<MaxCol> 7 </MaxCol>
<MinCol> 5 </MinCol>
<MaxEndDiff> 7 </MaxEndDiff>
<MinEndDiff> 3 </MinEndDiff>
<LetterDelay> 2000 </LetterDelay>
<OceanDepth> 300 </OceanDepth>
<TreasureSecs> 30 </TreasureSecs>
<MapDelay> 250 </MapDelay>
</Default>
Change the "<DiverSpeed> 0.300000 </DiverSpeed>" entry to "<DiverSpeed> 9 </DiverSpeed>" You will now go faster than ever. You can also change other things, such as Ocean Depth, Treasure Secs, etc.