What I see it’s normal. I mean, ETH have had a very big drop recently (more than 25%). It’s normal to keep doing DCA and lowering average bought price with Continuous Trading sells. Sometimes, after a big drop, the bot needs time to do its things and lower ABP to a point in which we can exit with profit.
You can add more pairs without increasing VPS hardware, as far as you keep processing cycles with the same delay.