What is your average heart rate while using Zwift?

I’m new to Zwift. 34m 240lbs 6’2”. My heat rate seems to want to go as high at 175bpm. While making 250watts.

I’ve tried easier workouts. But it seems to still want to rise that high. Would you recommend just doing routes at my own pace? Or is 170 normal.

I’m really enjoying it. But also don’t want to hurt myself.