The manufacturer site [0] has more claims/details, ex:

> Modelling shows that this technology can potentially propel a spacecraft with a mass of about 1,000 kg (2,200 lb) to Pluto in 4 years.

> Static tests are to begin in 2025 followed by an In Orbit Demonstration (IOD) of the core technology components in 2027.

[0] https://pulsarfusion.com/sunbird-fusion-propulsion/