I don't think Denise is anymore annoying than half of Moore's Bond girls and far less so than Halle Berry. But yeah, she is a terrible actress.
That movie has a good villain in Renard, Brosnan's best performance and an actually good plot that utilizes Judi Dench's M the best to date and is the only one where in a surprise twist, the main Bond villain turns out to really be the Bond girl. All the scenes between Bond and Sophie Marceau were good. When Bond executes her, it is Brosnan's best Bond moment in the series, I think. The action sequence at the beginning in Spain and then at MI6/the Thames River and the nuclear silo were pretty good too.
I know the skiing scene and the buzz saw chopper scene were both poorly shot/edited, but I will never get why that isn't considered one of the better Bond movies by fans. Richards is no worse of an actress than half of the other Bond girls. Take out two poorly done chase scenes (something there is more than one of in QOS) and it is much better.