In reply to SiobhanStraver:
Moving dynamically is good and one of the keys to climbing harder grades. But cutting loose may be a problem on harder climbs with smaller holds.
Watch some videos online of top men and women climbers climbing some really hard climbs. Think Ondra, Sharma, Megos, Ashima, Janja Garnbret, Jain Kim. How often are they cutting loose on these top level climbs? Maybe once or twice in the crux moves? Sometimes the handholds are so small, the key is making sure their feet stay on.
Everyone has to learn to climb differently as they have their own strengths to exploit and weaknesses to iron out or work around. Generally I'd say it's better to develop your climbing style mostly keeping your feet on rather than monkey-barring between big holds - you won't find many climbs in the UK where you can do this, it sort of depends on the big buckets they put on indoor routes. But you have to work out what works best for you.