I have Zhanchi and i tried to clean it using Speedcubing World tutorial on youtube. I put pieces in hot water and put some dish washer, and after that i didnt rinse it with cold water...

Now my cube is slower that it used to be.
I tensioned it to loose tension and put torpedos to prevent poping but it still pops because of loose tension. I'm planning to buy guhong v2. Can someone give me some advice to improve turning of my Zhanchi, is it slowed by hot water or what? thanks all