Is there a substantial difference between Aldi/Lidl hedge trimmers and
those made by Bosch and, next up in price-quality I suppose, Viking/
Stihl ?

I have had a Lidl for three years and each year end up doing the job
with hand shears.
It seems powerful enough, the blades are self-sharpening(?), it is not
too heavy but
it just seems to push the leaves and twigs away instead of cutting
them.

Before I invest in a better one I would like to know that it really is
better at cutting.
(I am less concerned about other qualities, like long-lasting.)

Advice please !
Rob