nreel, You neglected to tell us:
1. What type of PC that you have?
2. What OS you are using?
3. How much RAM memory you have?
4. What other programs are running along with Hoster?
5. How well you maintain your PC such as defrag, virus detection, etc.?
6. How well your PC works when running other programs?
Are you an experienced you are as a PC user or a beginner? Experienced or not, you need to begin troubleshooting your problem. You can start by addressing the above 6 questions.
Best of luck.
Steve