I think Lashana Lynch killed her role (positive comment about her acting). I think the story was already facing an impossible climb in being adapted to the modern world.

The original movie showed that aside from the Jackal being better than competent government agents, there were also practical logistical difficulties trying to find one unknown bad guy in a liberal world. And the internet basically solved all of these.

• Magical anonymous internet chat that can be carried around on a USB stick. At a minimum that's a reboot of the computer to run on the USB stick.
• A wealthy person being traced with publicly available information because I guess they hid their money trail themselves instead of letting a professional handle it. That's boots on the ground investigative reporters at a minimum looking for a single slip up.
• So many burner phones.
• Forged passports that don't just trigger an alert when the person doesn't exist on the passport database.