Timing Problems - Live Rehearsal

Hello,

First post here. Question: I have a problem where I play the solos I wrote for my band at home pretty well, to like 90% at least, if not 95%.
When I play try to play them live they can be quite bad, like at 70% quality.

Background: We've been rehearsing various tracks for about a year. I'm not new to playing metal rhthym, only lead guitar playing, and have been working on my chops for leads for a few years. My live experience is minimal except for the rehearsals. This is the first band I've been in since my teens.

I think what is happening is that when playing live at my bands rehearsal is that I've got too much going on in my head when I'm playing and my timing and fine muscle control becomes poor. I don't feel really nervous or anything. I'm vaguely conscious that I've got one take to do it right, that I don't want to mess up and the tempos can be quite fast.

The only partial solution I've had is to tap my foot which helps focus. I don't really know how to clear my head and not overthink.

I assume I just need to get used to playing live and practice more (I do at least an hour a day 7 days a week). Has anyone experienced the same? Any suggestions? It's been immensely frustrating because I feel totally undermined by what's going on in my head despite what I practice at home.

Cheers,
Quentin