common issue, particularly with new dual sport riders used to street bikes.
Many use lowering links but longer lowering links increase leverage on the shock effectively lowering springrate AND damping. .....depending on load this is ofter a BAD thing. Preload adjustment won't help with the reduced springrate. Changing the spring will but it won't help damping. My advice is not to lower the bike unless you absolutely are convinced you need to and if you do to keep it modest - 1" preferably and move your forks the corresponding amount. Set your sag properly. too......a lower seat or taller boots are better ideas IMO as is just getting used to it. My ex-wife is 5'4" and rode a stock height Gen1....she was also the PNWMA Women's offroad champion for 4 years in a row - experience and practice DO help.