Yay! Solved at least to some extent... for Firefox not Chrome... using the last piece of advice on the above linked page; installed the 'Privacy Badger' add-on in Firefox and set it to block the kaspersky 'tracker' as it calls it... and it's worked! Now Kaspersky is enabled and there is no lag, but only in Firefox... but it's about time I gave Firefox a try anyway so I'm good
Thanks guys for all your help
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