FlipaClip laggy on BlueStacks

I'm using a Wacom intuos drawing tablet, on a ASUS Sonicmaster laptop (it's also a Microsoft computer, Windows 10) and I've just installed Flipaclip via Bluestacks. And I noticed something weird, when I tried to go to the + button for a new animation, it doesn't respond, or it responds late. And when I attempted to draw on it with my tablet pen, the pen just moves the white canvas instead of drawing a line. It also expands and retracts the canvas as well. And I can only draw with my mouse touchpad. I've restarted the laptop, and that didn't work, the Wacom pen is up to date, and I restarted the Wacom tablet. Is there any methods for this?? Pls respond asap.