Maybe you could get those advantages in a practical and safe way with a recall mechanism. You’d have the standard representative, multi-year-term for most stuff, but a continuous recall poll (with a fairly high bar). This would essentially establish an approval floor.

It would be tricky to implement this. It’s hard enough to get people to vote one a year. If you go digital you have security and equity issues. You’d need some kind of rolling window to count votes.

Probably not practical.

Re-call polls don't appear to work in practice.

Either the bar for re-call is too low, such that evidently popular candidates face an energy-, cash-, and time-wasting re-election campaign, or the bar is too high, because a signature-collecting campaign can never match the energy of election day.

Continuous voting is (more) practical.

Elected candidates would face a constant risk of being out-voted, but it's generally a very low risk, because the balance of the votes is unlikely to switch overnight - it was either foreseeable or there was some democratically-relevant scandal.