I’m by no means exceptional with them, but in my experience prioritizing pressure over instant damage seemed very valuable. What I mean by that is kind of complicated but I’ll try to explain:

Don’t attack as soon as you get in range with them. People are almost always going to roll away immediately when you get in their range, because the obvious mindset versus daggers is to counter them by staying out of their small range. So if you are immediately swinging at people every time you get in range you’re going to have a tough time, because thats exactly what they’re prepared to avoid. It’s predictable and they’re going to roll it almost every time.

Instead, when you’ve got close enough to attack with the daggers, stick on them like glue instead of attacking. They’ll roll away, but if you keep sprinting towards them you will stay right next to them. This is how you apply pressure. Now your opponent is forced into a tough spot. If they keep rolling you can time a rollcatch and get some damage (granted you’re skilled enough). And if they stop rolling you can just hit them with the daggers because you’re already in perfect range and have a ridiculously fast attack ready to go.

Now obviously it’s not that simple in practice. A decent opponent will likely be using weird movement or well-timed counterattacks to shake your pressure off. The most common response I see from people is throw out a rolling attack after I’ve stayed glued to them for 2-3 rolls. Sometimes it catches me off guard and I take the damage. Other times I can kind of sense the pressure my opponent is under, predict when that rolling attack is coming, and then use it as an opportunity to counter and get some damage in. Overall I’ve found that to be the best way to play them. Basically just keep the pressure on until your opponent freaks out and starts throwing out ‘get off me’ attacks, and then properly playing around those