Sad looking lilac bushes

Sad looking lilac bushes

My husband transplanted some lilac bushes in our yard last spring. They are very sparse and straggly. I want to keep them and help them flourish, what would you recommend? Hack them to about 2-3 feet tall? This picture is kinda hard to see title or description A bit easier to see here title or description Is that new growth? title or description And cause I LOVE tulips, here are a few of my faves this year title or description title or description title or description
The big project to date (almost)

The big project to date (almost)

Chile peppers

Chile peppers

I obsessively cleaned my room today

I obsessively cleaned my room today

Hello!

Hello!

Mystery Ground Cover (weed?)

Mystery Ground Cover (weed?)

my hot household & our apartment

my hot household & our apartment