Basically, I have a laptop with R5 M255. This chip is unusable for gaming, it delivers less fps than the HD4400, as well as adds major lag spikes on sudden actions (such as a spellcast in w/e game). It even makes general computer usage much more laggy.
If this is normal for this chip, why does it even exist? It is counterintuitive to add a semi-dedicated chip on top of an integrated one if it does not improve performance. If it's not, how could I fix this problem? I've tried various driver versions, various games, no change.