Hi,
Sorry for the previous replies, there's was some errors in it.
SpeedCache is working with Hikashop because you can exclude logged in users from cache or make cache exclusion per URL or set of URLs. If you find the configuration too technical the support can help you with that
I don't see any reason why the extension won't work with Minitek Wall. Maybe the image lazy loading feature needs to be tested carefully, that's all.
Cheers,