Is capturing known keyboard shortcuts such as F5 a bad UX?

I have a website that has an editable table with data in it.

Is capturing F5 to refresh data (with clear notification that the data was refreshed) instead of refreshing the entire page bad user experience?

Can we assume that users who know about F5 also know about CtrlR? Should i come up with another keyboard shortcut such as CtrlAltR instead?