Here are simple things to optimize your time :

1.Spam touch (or clicks) to skip attacks animations. You'll actually win a lot of time.

2.Disable attack animations : 1) Go in the Misc. ( http://prntscr.com/eevoe2 ) 2) Go in the settings section ( http://prntscr.com/eevp87 ) 3) Put "Combat Animations" and "Support Animations" off ( http://prntscr.com/eevpt1 )

3.Don't forget that magic heroes are very strong especially in speedruns

4. Do only one summon session and keep your orbs to refill your stamina and to revive when you die