I'm Similar to you.
I'm much better at longer distances as I don't have any 'top end speed', I'm a pure diesel!

1st swim since early March is coming this Saturday - OW is just restarting at a few venues in England this week (with restrictions).
I'll see how I go this weekend... suspect it's gonna be slow, but at the same time very enjoyable- definitely going to just take it for what it is and use the speed / times as a 'starting point' to build from.
(5 mile race to build up to in Sept IF it takes place).