Toon Boom Harmony Essential 15 Extremely Laggy

My Toon Boom Harmony Essential 15 is extremely laggy, it takes 5 seconds to actually see what I did.

I already restored the workplace.

My Specs are:

Windows 10 64 bits
Intel Core i7-3612QM CPU @ 2.10GHz 2.10Ghz
8 GB RAM memory
NVIDIA GeForce GT 650M

I´ve been looking for a solution, I hope someone can help me.