Cucumber not thriving

Mine are the same for about 4ft but still producing at the tips in the eaves of the GH, even the outdoor one is too. My CFB are the same, but not still producing. I put it down to end of life and have resolved (with the beans and sweetcorn) to sow in two batches rather that go off like a headless chicken ( sorry V) in the spring and sowing all and everything far too early. Spring patience is not one of my virtues.