Disabling pinch zoom on mobile website

I use my iphone to trade topstepX.

but it’s kinda annoying that every time I zoom in and out my chart embedded in topstepX, the whole website get pinched so I cannot use it well.

maybe you can adjust the html of website to disable pinch zoom of the website itself?

I think it’s not a big deal, so I hope it could be accepted ASAP. thanks!