I need to change my pump, is it a good idea to get a more powerful one ?

No. This would risk reducing filtration quality, because the water would pass too quickly through the filter: a pump is always sized to work with a filter.

On the other hand, you can take the opportunity to swap for a variable speed pump which circulates water permanently at low speeds. Result: it is super silent and electricity consumption is reduced by up to 85%*

*Potential savings of 65% are generally observed