Need someone with low PC to do a simple fps test

So basically I would want some of you with rather old computers to do me a little fps test on a spell - just tell me how much your fps drops when you cast the spell "Purification" and you are next to the enemy Heroes. I've used a single dummy that frequently casts a spell so maybe this could be unplayable for some users with low stat PCs. This test isn't more than 1 minute - note only fps before cast and fps after cast. I'd +rep for your time spent. Thanks.

Resolution : 800x640
Graphics : everything at the most minimal possible

Start : 16.3fps (32.7 fps with black mask)
Just after cast : 0.9fps
During cast : 3.9fps
After cast : 16.1fps (32.3fps with black mask)

edit: wrong fps because black mask

Resolution: 800x640 16-bit color
Model:Low
Animation: Medium
Texture: Medium
Spell Detail: High

on field with enemies: 51.1~51.7
spell effect: 15.7~17.9
end spell: 50.1~51.7

Thank you guys, +repped. Just one last test if possible - I changed the frequency of some stuff so I assume it would be less laggier but I don't know by how much. Could you do it one more time?

Resolution: 800x640 16-bit color
Model:Low
Animation: Medium
Texture: Medium
Spell Detail: High

on field with enemies: 45.5~56.8
spell effect: 25.9~32.3 <playable>
end spell: 51.8~60.1

Thanks again for the time spent, chobibo. I'm done here - I got more data from another thread.