We know about this issue, however it is deeply located in our layout logic. That is why there is no easy solution for it. Nevertheless, we know how frustrating could be this issue and I can assure you that we are working on it and we will address the issue in one of our upcoming releases.
There is one option to solve the issue which works in some cases. You should remove the following two lines from your Form.cs file:
.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
I hope this helps. If you have other questions, do not hesitate to ask.
All the best,
the Telerik team