Welcome to Hifiguides,
To answer the question, They are fairly moderate for competitive gaming but definitely not ideal and it has to do with the fact of them being bassy with not too much on the treble. They can do the job it’s just that in the case of Philips the shp9500 would be better due to less bass. If your on a pc you can get an equalizer program like peace apo and dial back the bass and dial up your treble to help out a lot. In most cases imo x2 hr is better than a shp9500 but in comparison the shp9500 is more neutral with a sharper and detailed high end which is very useful in competitives. Just in general you don’t want a rumbly bass in competitive gaming you would generally want the bass recessed with mids and highs being pushed to the front of the sound so you can hear footsteps and other cues a lot better. @Ark-Imperious Looks like ant beat me to posting the guide up. The guide below this post should help a ton to find out what your looking for.