Honda mower starts but doesn't run very well

Links to products I have in my tool bag. Honda Air Filter. https://amzn.to/3gPEGfR Compression tester. https://amzn.to/2NMgeze Spark PLUG TESTER. https://amzn.to/3jEcZH3 Inline Spark Checker. https://amzn.to/3bnXjmA Feeler Gauge set. https://amzn.to/3rTsZK6 Chemical bottle. https://amzn.to/3eWcGVs Lithium Grease https://amzn.to/3BAMsnX Above are affiliate links which means we receive a percentage of the revenue made from purchasing products via those links. This mower was used last year with no problems but this year it's hard to start. The problem of course is maintenance related.