L2J Server

Hi all. I cant resolve a trouble by myself, and I need advice
There is PVP multi-professional server, where characters can have big number of skills (more than 700). When character changes its equipment (only with skills, e.g, weapon with SA, augmented weapon, set item), client freezes for certain time (depend of connection speed: 2-10 seconds), this make a game rather uncomfortable. Client freezes because of recieving SkillList packet from server (about 700 skills, I repeat).
For now I just disabled sending skill list on eqip change, but it is not very graceful solution. Is'nt there a way to send not whole skill list, only update? Or maybe another way?

that is the only way to update it... the packet iterates over every skill and adds the info to the packet, the resulting packet is huge if it really is ~700 skills. Can't do anything about it.