Should I sell one index fund to buy another?

I’m a UK investor who has recently switched my equity index fund of choice from one with a 0.22% fee to one with a 0.10% fee. Other than that they are essentially the same.

I’ve only been investing since the start of this year and have put in £80 per month. I’m ‘up’ on both.

Should I sell the one with the higher fee to buy the one with the lower fee? I’ve got a new job recently so will be able to increase my monthly addition substantially, just wondering if it’s worth doing this now? Will it save me money over time? Or am I basically wiping out the “value” I’ve accumulated on the 0.22% fund which has increased more since I’ve held it for longer?

Apologies if stupid question, any insight appreciated!