My chilli plant is feeling unwell

I started from seed about the same time last year and my chillis pepper plant is yielding the first fruit, it's kind of slow, this is the first time I grow something so please bear with me. I have seen some problems on the leaves. Could you help tell me what I can do better? I use the miracle grow potting mix and some plant food from home depot. It's planted in a 7 quarts grow bag and watered every 2-3 days, thoroughly. The plant is at my front yard right now so it has ~4 hours of sunlight every day. I am in SF bay area, the weather is chill here but I think chillis peppers prefer warm-hot temperatures?

Your input is much appreciated 🙏