Tl;dr the Republic exhausted them by their reinforcements and forced them by their ships and shields to keep them from escaping. Oh, and Palpatine as Sidious didn't let them escape when it would be logical to do so.
Personally, I'd have that flagship of a similar scale and size of the Mandator and Mandator-II star dreadnoughts Kuat built around that area for a nice battle

But failing that in the movies (they did do Malevolence though in the CW- others pointed that out for us).
Also goddamn character limit. have you posted on spacebattles.com?
oh, all the info I have you is from novels, guides, the old articles on the star wars site, etc.