This set of prefs makes GUI of an old KM 1.6-1.7 slightly more responsive and also touches some other fine tunings for more productive work.

Specially for siria and all who deals with old KM branches (me too!)

Full list of settings affected

setpref(BOOL,"content.notify.ontimer",true);
setpref(INT, "content.notify.interval",120000);
setpref(INT, "content.notify.backoffcount",15);
setpref(BOOL,"network.http.pipelining",true);
setpref(INT, "network.http.pipelining.maxrequests",8);
setpref(BOOL,"network.http.proxy.pipelining",true);
setpref(BOOL,"network.http.pipelining.firstrequest",true);
setpref(BOOL,"network.dns.disableIPv6",true);
setpref(INT, "nglayout.initialpaint.delay",0);
setpref(INT, "network.http.max-connections",60);
setpref(INT, "network.http.max-connections-per-server",24);
setpref(INT, "network.http.max-persistent-connections-per-proxy",4);
setpref(INT, "network.http.max-persistent-connections-per-server",2);
setpref(INT, "network.http.keep-alive.timeout",600);
setpref(INT, "network.http.request.max-start-delay",5);
setpref(INT, "browser.cache.offline.capacity",512000);
setpref(BOOL,"content.interrupt.parsing",true);
setpref(INT, "content.max.tokenizing.time",600000);
setpref(INT, "content.switch.threshold",900000);
setpref(BOOL,"config.trim_on_minimize",true);
setpref(INT, "ui.submenuDelay",0);
setpref(BOOL,"html5.enable",true);
setpref(INT, "content.maxtextrun",4095);
setpref(INT, "network.http.request.max-start-delay",5);
setpref(INT, "network.ftp.idleConnectionTimeout",150);
setpref(BOOL,"javascript.options.jit.content",true);
setpref(BOOL,"javascript.options.jit.chrome",false);

Feel free change values according to your needs, tastes and experience!

content.XXXXX. prefs affect the GUI responsiveness
network.XXXXXX. - are about using your connection

You need switch Tune on/off by checking/unchecking TwinTune item in Tools menu.

Thank you, will try it! Am just rather slow these days, can take awhile.