My gf needs a vibrator to orgasm. Is that bad?

I can never make her orgasm unless I use her vibrator on her. She said it's because of her anti-anxiety medication and this causes her to need extra stimulation. I've tried myself but the vibrator can move a lot faster than I can physically.

But is it bad if I cannot satisfy her without it, or does she not care because she is still having fun with me so it's all good, and nothing to think much about? Thanks for any advice on this! I really appreciate it!