>> I agree. I have a second, crummy old laptop for just this reason. Learned this the hard way. Made an editor, everyone loved it. Added features, people loved

>> I agree. I have a second, crummy old laptop for just this reason. Learned this the hard way. Made an editor, everyone loved it. Added features, people loved it. Kept adding features...then it was called slow, bloated etc. Everything seemed fine on my new-at-the-time iMac. Went into a conference room where we had one of the first Intel MacBook Pros...there were portions of the editor where you could literally see things being redrawn. A night of optimizations later, performance was restored.