Advice wanted: Telegram verses Pushbullet for HA to Mobile messages?

I’m currently using Pushbullet on two Samsung S4 android phones. One is my mobile and one is used as a wall panel.
I’m not very happy with Pushbullet, as it seems to bring my S4 to it’s knees periodically (super go slows, makes it hard to answer a call its so slow). If I uninstall PB the phone works fine for my needs, then works OK for a few days when reinstalled, then later the go-slows repeat…

So I’m wondering, is the Telegram app better than Pushbullet on older Android hardware and worth changing over to.
Any opinions ?